USB2660I-JZX_技术文档

USB2660/USB2660i

Ultra Fast USB 2.0 Hub and Multi-Format Flash Media Controller

with Dual SD Interfaces

General Description

Features

The Microchip USB2660/USB2660i is a USB 2.0 com-

pliant, Hi-Speed hub, card reader, and protocol con-

verter combo solution. This fully integrated single chip

solution provides USB expansion and flash card media

reader/writer integration. The Microchip USB2660/

USB2660i provides an ultra fast interface between a

USB host and today’s popular flash media formats. The

controller allows read/write capability to flash media

from the following families:

• Compliance with the following flash media card

specifications SD 2.0 / MMC 4.2 / MS 1.43 / MS-

Pro 1.02 / MS-Pro-HG 1.01 / MS-Duo 1.10 / xD

1.2

• Supports a single external 3.3 V supply source;

internal regulators provide 1.8 V internal core volt-

age for additional bill of materials and power sav-

ings

• The transaction translator (TT) in the hub sup-

ports operation of Full-Speed and Low-Speed

peripherals

- Secure Digital^TM(SD)

- MultiMediaCard^TM(MMC)

- Memory Stick^®(MS)

• 9 K RAM | 64 K on-chip ROM

- xD-Picture Card^TM(xD)¹

• Enhanced EMI rejection and ESD protection per-

formance

The USB2660/USB2660i offers a versatile, cost-effec-

tive, and energy-efficient hub controller with 2 down-

stream USB 2.0 ports. This combo solution leverages

Microchip’s innovative technology that delivers indus-

try-leading data throughput in mixed-speed USB envi-

ronments. Average sustained transfer rates exceeding

35 MB/s are possible².

• Hub and flash media reader/writer configuration

from a single source: External I²C^®ROM or exter-

nal SPI ROM

- Configures internal code using an external

I²C EEPROM

- Supports external code using an SPI Flash

EEPROM

- Customizable vendor ID, product ID, and lan-

guage ID if using an external EEPROM

Highlights

• 2 exposed Hi-Speed USB 2.0 downstream ports

for external peripheral expansion

• Additional SD port for card reader

• The dedicated flash media reader is internally

attached to a 3rd downstream port of the hub as a

USB Compound Device

• The USB2660i supports the industrial tempera-

ture range of -40°C to +85°C

• 64-pin QFN RoHS compliant package (9 x 9 mm)

- a single or multiplexed flash media reader

interface

- a non-multiplexed SD interface (slot) for SD

card reader

Applications

• Desktop and mobile PCs

• Printers

• PortMap - Flexible port mapping and port disable

sequencing supports multiple platform designs

• GPS navigation systems

• Media players/viewers

• Consumer A/V

• PortSwap - Programmable USB differential-pair

pin locations eases PCB design by aligning USB

signal traces directly to connectors

• Set-top boxes

• PHYBoost - Programmable USB transceiver

• Industrial products

drive strength recovers signal integrity

1.For xD-Picture Card^TMsupport, please obtain a user

license from the xD-Picture Card License Office.

2.Host and media dependent.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 1

USB2660/USB2660i

TO OUR VALUED CUSTOMERS

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Most Current Data Sheet

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http://www.microchip.com

You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.

The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).

Errata

An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for cur-

rent devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the

revision of silicon and revision of document to which it applies.

To determine if an errata sheet exists for a particular device, please check with one of the following:

•

Microchip’s Worldwide Web site; http://www.microchip.com

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When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are

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DS00001931B-page 2

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USB2660/USB2660i

Table of Contents

1.0 Overview ......................................................................................................................................................................................... 4

2.0 Block Diagram ................................................................................................................................................................................. 6

3.0 Pin Configuration ............................................................................................................................................................................ 7

4.0 Pin Descriptions .............................................................................................................................................................................. 9

5.0 Pin Reset States ........................................................................................................................................................................... 19

6.0 Configuration Options ................................................................................................................................................................... 22

7.0 AC Specifications .......................................................................................................................................................................... 45

8.0 DC Parameters ............................................................................................................................................................................. 47

9.0 Package Specifications ................................................................................................................................................................. 52

Appendix A: Acronyms ........................................................................................................................................................................ 55

Appendix B: Data Sheet Revision History ........................................................................................................................................... 56

Product Identification System ............................................................................................................................................................. 57

The Microchip Web Site ...................................................................................................................................................................... 59

Customer Change Notification Service ............................................................................................................................................... 59

Customer Support ............................................................................................................................................................................... 59

 2010-2019 Microchip Technology Inc.

DS00001931B-page 3

USB2660/USB2660i

1.0

OVERVIEW

The Microchip USB2660/USB2660i is an integrated USB 2.0 compliant, Hi-Speed hub, card reader, and protocol con-

verter combo solution. This combo solution supports today’s popular multi-format flash media cards. This multi-format

flash media controller and USB hub combo features two exposed downstream USB ports available for external periph-

eral expansion. The dedicated flash media reader/writer is internally attached to a third downstream port of the hub as

a USB Compound Device which supports the following two interfaces: One interface is multiplexed for xD-Picture Card,

Memory Stick, Secure Digital/MultiMediaCard, and SD/Secure Digital Input/Output. The other interface is dedicated to

a second SD card slot.

The USB2660/USB2660i will attach to an upstream port as a Full-Speed hub or as a Full-/Hi-Speed hub. The hub sup-

ports Low-Speed, Full-Speed, and Hi-Speed (if operating as a Hi-Speed hub) downstream devices on all of the enabled

downstream ports.

All required resistors on the USB ports are integrated into the hub. This includes all series termination resistors on D+

and D– pins and all required pull-down and pull-up resistors. The over-current sense inputs for the downstream facing

ports have internal pull-up resistors.

The USB2660/USB2660i includes programmable features such as:

PortMap which provides flexible port mapping and disable sequences. The downstream ports of a USB2660/USB2660i

hub can be reordered or disabled in any sequence to support multiple platform designs with minimum effort. For any

port that is disabled, the USB2660/USB2660i automatically reorders the remaining ports to match the USB host con-

troller’s port numbering scheme.

PortSwap which adds per-port programmability to USB differential-pair pin locations.

PortSwap allows direct alignment of USB signals (D+/D-) to connectors avoiding

uneven trace length or crossing of the USB differential signals on the PCB.

PHYBoost which enables four programmable levels of USB signal drive strengths in

downstream port transceivers. PHYBoost attempts to restore USB signal integrity. The

diagram on the right shows an example of Hi-Speed USB eye diagrams before (PHY-

Boost at 0%) and after (PHYBoost at 12%) signal integrity restoration in a compro-

mised system environment.

1.1

Hardware Features

• Single chip hub and flash media controller combo

• USB2660 supports the commercial temperature range of 0°C to +70°C

• USB2660i supports the industrial temperature range of -40°C to +85°C

• Transaction translator (TT) in the hub supports operation of FS and LS peripherals

• Full power management with individual or ganged power control of each downstream port

• Optional support for external firmware access via SPI interface

• Onboard 24 MHz crystal driver circuit

• Optional external 24 MHz clock input which must be a 1.8 V signal

• Code execution via SPI ROM which must meet

- 30 MHz or 60 MHz operation support

- Single bit or dual bit mode support

- Mode 0 or mode 3 SPI support

1.1.1

COMPLIANCE WITH THE FOLLOWING FLASH MEDIA CARD SPECIFICATIONS:

• Secure Digital 2.0 / MultiMediaCard 4.2

- SD 2.0, SD-HS, SD-HC

- TransFlash™ and reduced form factor media

- 1/4/8 bit MMC 4.2

• Memory Stick 1.43

• Memory Stick Pro Format 1.02

DS00001931B-page 4

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

• Memory Stick Pro-HG Duo Format 1.01

- Memory Stick, MS Duo, MS-HS, MS Pro-HG, MS Pro

• Memory Stick Duo 1.10

• xD-Picture Card 1.2

• 8051 8-bit microprocessor

- 60 MHz - single cycle execution

- 64 KB ROM | 9 KB RAM

• Integrated regulator for 1.8 V core operation

1.2

Software Features

• Hub and flash media reader/writer configuration from a single source:

External I²C ROM or external SPI ROM

• If the OEM is using an external EEPROM or an external SPI ROM, the following features are available:

- Customizable vendor ID, product ID, and device ID

- 12-hex digits maximum for the serial number string

- 28-character manufacturer ID and product strings for the flash media reader/writer

1.3

OEM Selectable Hub Features

A default configuration is available in the USB2660/USB2660i following a reset. The USB2660/USB2660i may also be

configured by an external I²C EEPROM or via external SPI ROM flash.

• Compound Device support on a port-by-port basis

- a port is permanently hardwired to a downstream USB peripheral device

• Select over-current sensing and port power control on an individual or ganged (all ports together) basis to match

the OEM’s choice of circuit board component selection

• Port power control and over-current detection/delay features

• Configure the delay time for filtering the over-current sense inputs

• Configure the delay time for turning on downstream port power

• Bus- or self-powered selection

• Hub port disable or non-removable configurations

• Flexible port mapping and disable sequencing supports multiple platform designs

• Programmable USB differential-pair pin location eases PCB layout by aligning USB signal lines directly to connec-

tors

• Programmable USB signal drive strength recovers USB signal integrity using 4 levels of signal drive strength

• Indicate the maximum current that the 2-port hub consumes from the USB upstream port

• Indicate the maximum current required for the hub controller

 2010-2019 Microchip Technology Inc.

DS00001931B-page 5

USB2660/USB2660i

2.0

BLOCK DIAGRAM

FIGURE 2-1:

USB2660/USB2660I BLOCK DIAGRAM

DS00001931B-page 6

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

3.0

PIN CONFIGURATION

FIGURE 3-1:

USB2660/USB2660I 64-PIN QFN

SPI_CE_n

SPI_CLK / SCL

SD1_CMD / MS_D0 / xD_CLE

SD1_D5 / MS_D1 / xD_ALE

xD_nWE

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

SPI_DO / SDA / SPI_SPD_SEL

SPI_DI

SD1_CLK / MS_BS / xD_nWP

SD1_D6 / MS_D7 / xD_D0

SD1_D7 / MS_D6 / xD_D1

SD1_D0 / MS_D4 / xD_D2

SD1_D1 / MS_D5 / xD_D3

VDD33

LED / TXD

nRESET

VBUS_DET

TEST

USB2660/USB2660i

(Top View QFN-64)

VDD33

USBUP_DP

USBUP_DM

XTAL2

CRFILT

SD1_nCD

SD1_WP / MS_SCLK / xD_D4

SD2_D2

XTAL1 (CLKIN)

PLLFILT

SD2_D3

Ground Pad

(must be connected to VSS)

RBIAS

SD2_D4

VDD33

SD2_CMD

Indicates pins on the bottom of the device.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 7

USB2660/USB2660i

3.1

64-Pin Table

TABLE 3-1:

USB2660/USB2660I 64-PIN TABLE

SECURE DIGITAL / MEMORY STICK / xD INTERFACE (18 PINS)

SD1_D7 /

MS_D6 /

xD_D1

SD1_D6 /

MS_D7 /

xD_D0

SD1_D5 /

MS_D1 /

xD_ALE

SD1_D4 /

MS_D2 /

xD_D7

SD1_D3 /

MS_D3 /

xD_D6

SD1_D2 /

xD_D5

SD1_D1 /

MS_D5 /

xD_D3

SD1_D0 /

MS_D4 /

xD_D2

SD1_CLK /

MS_BS /

SD1_CMD /

MS_D0 /

SD1_nCD

MS_INS

xD_ nWP

xD_CLE

SD1_WP /

MS_SCLK /

xD_D4

xD_nCD

xD_nB/R

xD_nRE

xD_nCE

xD_nWE

SECOND SECURE DIGITAL INTERFACE (12 PINS)

SD2_D7

SD2_D3

SD2_D6

SD2_D2

SD2_CLK

SD2_D5

SD2_D1

SD2_D4

SD2_D0

SD2_W

SD2_NCD

SD2_CMD

USB INTERFACE (5 PINS)

USBUP_DP

RBIAS

USBUP_DM

XTAL1 (CLKIN)

XTAL2

PRTCTL3

SPI_DI

2-PORT USB INTERFACE (7 PINS)

USBDN_DP2

USBDN_DP3

USBDN_DM2

USBDN_DM3

PRTCTL2

VBUS_DET

SPI INTERFACE (4 PINS)

SPI_CE_n

SPI_CLK /

SCL

SPI_DO /

SDA /

SPI_SPD_SEL

MISC (8 PINS)

nRESET

TEST

LED

CRD_PWR2

CRD_PWR1

(3) NC

POWER (10 PINS)

(8) VDD33

CRFILT

PLLFILT

TOTAL 64

DS00001931B-page 8

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

4.0

PIN DESCRIPTIONS

This section provides a detailed description of each signal. The signals are arranged in functional groups according to

their associated interface. The pin descriptions below are applied when using the internal default firmware and can be

referenced in Section 6.0, "Configuration Options," on page 22. Please reference Section Appendix A:, "Acronyms," on

page 55 for a list of the acronyms used.

The “n” symbol in the signal name indicates that the active, or asserted, state occurs when the signal is at a low voltage

level. When “n” is not present in the signal name, the signal is asserted at a high voltage level.

The terms assertion and negation are used exclusively. This is done to avoid confusion when working with a mixture of

“active low” and “active high” signals. The term assert, or assertion, indicates that a signal is active, independent of

whether that level is represented by a high or low voltage. The term negate, or negation, indicates that a signal is inac-

tive.

4.1

USB2660/USB2660i Pin Descriptions

TABLE 4-1:

Symbol

USB2660/USB2660I PIN DESCRIPTIONS

64-PIN Buffer Type

Description

QFN

(Table 4-2)

SECURE DIGITAL INTERFACE

SD1_D[7:0]

27

28

31

38

40

41

25

26

I/O8PU

Secure Digital Data 7-0

These are the bi-directional data signals SD_D0 - SD_D7 with weak

pull-up resistors.

SD1_CLK

SD1_CMD

29

O8

Secure Digital Clock

This is an output clock signal to the SD/MMC device.

Secure Digital Command

32

I/O8PU

This is a bi-directional signal that connects to the CMD signal of the

SD/MMC device. The bi-directional signal has a weak internal pull-up

resistor.

SD1_nCD

SD1_WP

22

21

I/O8PU

I/O8

Secure Digital Card Detect

Designates as the Secure Digital card detection pin and has an internal

pull-up.

Secure Digital Write Protected

Designates as the Secure Digital card mechanical write protect detect

pin.

SECOND SECURE DIGITAL INTERFACE

SD2_D[7:0]

11

12

16

18

19

20

9

I/O8PU

SD2 Data 7-0

These are the bi-directional data signals SD2_D0 - SD2_D7 and have

weak pull-up resistors.

10

SD2_CLK

13

O8

SD2 Clock

This is an output clock signal designated for to the SD2/MMC device.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 9

USB2660/USB2660i

TABLE 4-1:

Symbol

USB2660/USB2660I PIN DESCRIPTIONS (CONTINUED)

64-PIN Buffer Type

Description

QFN

(Table 4-2)

SD2_CMD

17

I/O8PU

SD2 Command

This is a bi-directional signal designated by for the CMD signal of the

SD2/MMC device. The bi-directional signal has a weak internal pull-up

resistor.

SD2_nCD

SD2_WP

8

I/O8

SD2 Card Detect

Designates as the second Secure Digital card detection pin and has an

internal pull-up.

45

SD2 Write Protected

Designates as the second Secure Digital card interface mechanical

write detect pin.

MEMORY STICK INTERFACE

MS_BS

MS_INS

29

O8

Memory Stick Bus State

This pin is connected to the bus state pin of the MS device. It is used

to control the Bus States 0, 1, 2, and 3 (BS0, BS1, and BS3) of the MS

device.

39

21

IPU

Memory Stick Card Insertion

Designates as the Memory Stick card detection pin and has a weak

internal pull-up resistor.

MS_SCLK

MS_D[7:0]

O8

Memory Stick System Clock

This pin is an output clock signal to the MS device.

Memory Stick System Data In/Out

28

27

25

26

40

38

31

32

I/O8PD

These pins are the bi-directional data signals for the MS device. In serial

mode, the most significant bit (MSB) of each byte is transmitted first by

either MSC or MS device on MS_D0.

MS_D0, MS_D2, and MS_D3 have weak pull-down resistors. MS_D1

has a pull-down resistor if in parallel mode, otherwise it is disabled. In

4- or 8-bit parallel modes, all MS_D7 - MS_D0 signals have weak pull-

down resistors.

xD-PICTURE CARD INTERFACE

xD_D[7:0]

38

40

41

21

25

26

27

28

I/O8PD

xD-Picture Card Data 7-0

These pins are the bi-directional data signals xD_D7 - xD_D0 and have

weak internal pull-down resistors.

xD_ALE

31

O8PD

xD-Picture Card Address Strobe

This pin is an active high Address Latch Enable (ALE) signal for the xD

device. This pin has a weak pull-down resistor that is permanently

enabled.

DS00001931B-page 10

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

TABLE 4-1:

Symbol

USB2660/USB2660I PIN DESCRIPTIONS (CONTINUED)

64-PIN Buffer Type

Description

QFN

(Table 4-2)

xD_nB/R

36

IPU

xD-Picture Card Busy or Data Ready

This pin is connected to the BSY/RDY pin of the xD-Picture Card

device.

When using the internal FET, this pin has an internal weak pull-up

resistor that is tied to the output of the internal power FET.

If an external FET is used (the internal FET is disabled), then the

internal pull-up is not available (an external pull-up is required).

xD_nCE

34

O8PU

xD-Picture Card Chip Enable

This pin is an active low chip enable signal for the xD-Picture Card

device.

When using the internal FET, this pin has an internal weak pull-up

resistor that is tied to the output of the internal power FET.

If an external FET is used (internal FET is disabled), then the internal

pull-up is not available (an external pull-up is required).

xD_CLE

32

O8PD

xD-Picture Card Command Strobe

This pin is an active high Command Latch Enable signal for the xD

device. This pin has a weak pull-down resistor that is permanently

enabled.

xD_nCD

xD_nRE

37

35

I/O8

xD-Picture Card Detection

Designates as the xD-Picture Card detection pin.

xD-Picture Card Read Enable

O8PU

This pin is an active low read strobe signal for the xD-Picture Card

device.

When using the internal FET, this pin has an internal weak pull-up

resistor that is tied to the output of the internal power FET.

If an external FET is used (internal FET is disabled), then the internal

pull-up is not available (an external pull-up is required).

xD_nWE

30

O8PU

xD-Picture Card Write Enable

This pin is an active low write strobe signal for the xD-Picture Card

device.

When using the internal FET, this pin has an internal weak pull-up

resistor that is tied to the output of the internal power FET.

If an external FET is used (internal FET is disabled), then the internal

pull-up is not available (an external pull-up is required).

xD_nWP

29

O8PD

xD-Picture Card Write Protect

This pin is an active low write protect signal for the xD-Picture Card

device. This pin has a weak pull-down resistor that is permanently

enabled.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 11

USB2660/USB2660i

TABLE 4-1:

Symbol

USB2660/USB2660I PIN DESCRIPTIONS (CONTINUED)

64-PIN Buffer Type

Description

QFN

(Table 4-2)

USB INTERFACE

USB Bus Data

USBUP_DM

USBUP_DP

59

58

I/O-U

These pins connect to the upstream USB bus data signals (host port or

upstream hub). USBUP_DM and USBUP_DP can be swapped using

the PortSwap feature (See Section 6.4.4.20, "F1h: Port Swap," on

page 38).

USBDN_DM

[3:2]

USBDN_DP

3

1

4

2

I/O-U

USB Bus Data

These pins connect to the downstream USB bus data signals and can

be swapped using the PortSwap feature (See Section 6.4.4.20, "F1h:

Port Swap," on page 38).

[3:2]

PRTCTL[3:2]

7

6

I/OD6

PU

USB Power Enable

As an output, these pins enable power to downstream USB peripheral

devices and have weak internal pull-up resistors. See Section 4.3, "Port

Power Control" for diagram and usage instructions.

As an input, when the power is enabled, these pins monitor the over-

current condition. When an over-current condition is detected, the pins

turn the power off.

VBUS_DET

55

I

Detect Upstream VBUS Power

Detects the state of upstream VBUS power. The hub monitors

VBUS_DET to determine when to assert the internal D+ pull-up resistor

(signaling a connect event).

When designing a detachable hub, connect this pin to the VBUS power

pin of the USB port that is upstream of the hub.

For self-powered applications with a permanently attached host, this pin

should be pulled up, typically to VDD33.

VBUS is a 3.3 volt input. A resistor divider must be used if connecting

to 5 volts of USB power.

RBIAS

XTAL1 (CLKIN)

XTAL2

63

61

60

I-R

USB Transceiver Bias

A 12.0 k, 1.0% resistor is attached from VSS to this pin in order to

set the transceiver's internal bias currents.

ICLKx

OCLKx

24 MHz Crystal Input or External Clock Input

This pin can be connected to one terminal of the crystal or it can be

connected to an external 24 MHz clock when a crystal is not used.

24 MHz Crystal Output

This is the other terminal of the crystal, or it is left open when an

external clock source is used to drive XTAL1(CLKIN).

SPI INTERFACE

SPI_CE_n

49

50

O12

SPI Chip Enable

This is the active low chip enable output. If the SPI interface is enabled,

this pin must be driven high in power down states.

SPI_CLK

SCL

I/O12

I/O6

This is the SPI clock out to the serial ROM. See Section 4.4, "ROM

BOOT Sequence" for diagram and usage instructions. During reset,

drive this pin low.

When configured, this is the I²C EEPROM clock pin.

DS00001931B-page 12

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USB2660/USB2660i

TABLE 4-1:

Symbol

USB2660/USB2660I PIN DESCRIPTIONS (CONTINUED)

64-PIN Buffer Type

Description

QFN

(Table 4-2)

SPI_DO /

SDA /

51

I/O12

This is the data out for the SPI port. See Section 4.4, "ROM BOOT

Sequence" for diagram and usage instructions.

This pin is the data pin when the device is connected to the optional I²C

EEPROM.

I/O6

SPI_SPD_SEL

I/O12

This pin is used to select the speed of the SPI interface. During

nRESET assertion, this pin will be tri-stated with the weak pull-down

resistor enabled. When nRESET is negated, the value on the pin will be

internally latched, and the pin will revert to SPI_DO functionality, the

internal pull-down will be disabled.

‘0’ = 30 MHz (No external resistor should be applied.)

‘1’ = 60 MHz (A 10 K external pull-up resistor must be applied.)

If the latched value is '1', then the pin is tri-stated when the chip is in

the suspend state.

If the latched value is '0', then the pin is driven low during a suspend

state.

SPI_DI

LED

52

53

I/O12PD

This is the data in to the controller from the ROM. This pin has a weak

internal pull-down applied at all times to prevent floating.

MISC

I/O6

It can be used as an LED output.

NC

44

15

CRD_PWR2

I/O200

Card power drive: 3.3 V (100 mA or 200 mA)

This pin specifically powers the second Secure Digital interface (slot).

Please reference Section 6.4.5.9, "147h-14Bh: Device to LUN

Mapping," on page 42.

CRD_PWR1

REG_EN

43

I/O200

Card power drive: 3.3 V (100 mA or 200 mA)

This pin powers the multiplexed flash media interface (slot) for xD, MS,

and SD/MMC.

Please reference Section 6.4.2.3, "A4h-A5h: Smart Media Device

Power Configuration," on page 30.

IPU

REG_EN: This pin is internally pulled up to enable the internal 1.8 V

regulators.

In order to disable the regulators, this pin will need to be externally

connected to ground.

When the internal regulator is enabled, the

1.8 V power pins must be left unconnected, except for the required

bypass capacitors.

nRESET

TEST

54

56

IS

I

RESET Input

The system uses this active low signal reset the chip. The active low

pulse should be at least 1 s wide.

TEST Input

Tie this pin to ground for normal operation.

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DS00001931B-page 13

USB2660/USB2660i

TABLE 4-1:

Symbol

USB2660/USB2660I PIN DESCRIPTIONS (CONTINUED)

64-PIN Buffer Type

Description

QFN

(Table 4-2)

DIGITAL / POWER / GROUND

CRFILT

PLLFILT

23

VDD Core Regulator Filter Capacitor

This pin requires a 1.0 F (or greater) 20% (ESR <0.1) capacitor to

VSS.

62

Phase-locked Loop Regulator Filter Capacitor

This pin requires 1.0 F (or greater) 20% (ESR <0.1) capacitor to

VSS.

VDD33

5

3.3 V Power and Regulator Input

14

24

33

42

47

57

64

Please refer to Section 8.0, "DC Parameters," on page 47 for more

information.

Pins 24 and 64 require external bypass capacitors of 4.7 F minimum.

VSS

NC

ePad

The ground pad is the only VSS for the device and must be tied to

ground with multiple vias.

46

48

No Connect pins

No trace or signal should be routed/attached to these pins.

DS00001931B-page 14

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

4.2

Buffer Type Descriptions

TABLE 4-2:

Buffer

USB2660/USB2660I BUFFER TYPE DESCRIPTIONS

Description

I

Input.

IPU

Input with weak internal pull-up.

Input with Schmitt trigger.

IS

I/O6

I/OD6PU

O8

Input/output buffer with 6 mA sink and 6 mA source.

Input/open drain output buffer with a 6 mA sink.

Output buffer with an 8 mA sink and an 8 mA source.

O8PD

Output buffer with an 8 mA sink and an 8 mA source with a weak internal pull-

down resistor.

O8PU

Output buffer with an 8 mA sink and an 8 mA source with a weak internal pull-up

resistor.

I/O8

Input/output buffer with an 8 mA sink and an 8 mA source.

I/O8PD

Input/output buffer with an 8 mA sink and an 8 mA source with a weak internal

pull-down resistor.

I/O8PU

Input/output buffer with an 8 mA sink and an 8 mA source with a weak internal

pull-up resistor.

O12

Output buffer with a 12 mA sink and a 12 mA source.

Input/output buffer with 12 mA sink and 12 mA source.

I/O12

I/O12PD

Input/output buffer with 12 mA sink and 12 mA source with a weak internal pull-

down resistor.

I/O200

Input/output buffer 12 mA with FET disabled, 100/200 mA source only when the

FET is enabled.

ICLKx

OCLKx

I/O-U

I-R

XTAL clock input.

XTAL clock output.

Analog input/output as defined in the USB 2.0 Specification.

RBIAS.

4.3

Port Power Control

Port Power control using a USB Power Switch

The USB2660/USB2660i has a single port power control and over-current sense signal for each downstream port.

When disabling port power, the driver will actively drive a '0'. To avoid unnecessary power dissipation, the internal pull-

up resistor will be disabled at that time. When port power is enabled, the output driver is disabled, and the pull-up resistor

is enabled creating an open drain output.

If there is an over-current situation, the USB Power Switch will assert the open drain OCS signal. The Schmitt trigger

input will detect this event as a low. The open drain output does not interfere. The internal over-current sense filter han-

dles the transient conditions, such as low voltage, while the device is powering up.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 15

USB2660/USB2660i

FIGURE 4-1:

PORT POWER CONTROL WITH USB POWER SWITCH

5 V

PRTCTL3

OCS

USB Power

Switch

EN

USB

Device

USB2660/60i

5 V

PRTCTL2

OCS

USB Power

Switch

EN

USB

Device

4.3.1

PORT POWER CONTROL USING A POLY FUSE

When using the USB2660/USB2660i with a poly fuse, an external diode must be used (See Figure 4-2). When disabling

port power, the USB2660/USB2660i will drive a '0'. This procedure will have no effect since the external diode will isolate

the pin from the load. When port power is enabled, the USB2660/USB2660i output driver is disabled, and the pull-up

resistor is enabled which creates an open drain output. This open drain output condition means that the pull-up resistor

is providing 3.3 volts to the anode of the diode. If there is an over-current situation, the poly fuse will open. This will

cause the cathode of the diode to go to zero volts. The anode of the diode will be at 0.7 volts, and the Schmitt trigger

input will register this as a low resulting in an over-current detection. The open drain output does not interfere.

DS00001931B-page 16

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

FIGURE 4-2:

PORT POWER CONTROL WITH A SINGLE POLY FUSE AND MULTIPLE LOADS

5 V

PRTCTL3

USB

Device

USB2660/60i

5V

PRTCTL2

USB

Device

When using a single poly fuse to power all devices, note that for the ganged situation, all power control pins must be

tied together.

FIGURE 4-3:

PORT POWER WITH GANGED CONTROL WITH POLY FUSE

5 V

PRTCTL3

Poly Fuse

USB2660/60i

USB

Device

USB

Device

PRTCTL2

 2010-2019 Microchip Technology Inc.

DS00001931B-page 17

USB2660/USB2660i

4.4

ROM BOOT Sequence

After power-on reset, the internal firmware checks for an external SPI flash device that contains a valid signature of

"2DFU" (device firmware upgrade) beginning at address 0xFFFA. If a valid signature is found, then the external ROM

is enabled and code execution begins at address 0x0000 in the external SPI device. Otherwise, code execution contin-

ues from the internal ROM.

If there is no SPI ROM detected, the internal firmware then checks for the presence of an I²C ROM. The firmware looks

for the signature ‘ATA2’ at the offset of FCh-FFh and ‘ecf1’ at the offset of 17Ch-17Fh in the I²C ROM. The firmware

reads in the I²C ROM to configure the hardware and software internally. Please refer to Section 6.3.2, "EEPROM Data

Descriptor," on page 23 for the details of the configuration options.

The SPI ROM required for the USB2660/USB2660i is a recommended minimum of 1 Mbit and support either 30 MHz

or 60 MHz. The frequency used is set using the SPI_SPD_SEL. For 30 MHz operation, this pin must be pulled to ground

through a 100 k resistor. For 60 MHz operation, this pin must pulled up through a 100 k resistor.

The SPI_SPD_SEL pin is used to choose the speed of the SPI interface. During nRESET assertion, this pin will be tri-

stated with the weak pull-down resistor enabled. When nRESET is negated, the value on the pin will be internally

latched, and the pin will revert to SPI_DO functionality. The internal pull-down will be disabled.

The firmware can determine the speed of operation on the SPI port by checking the SPI_SPEED in the SPI_CTL register

(0x2400 - RESET = 0x02). Both 1- and 2-bit SPI operation is supported. For optimum throughput, a 2-bit SPI ROM is

recommended. Both mode 0 and mode 3 SPI ROMS are also supported.

FIGURE 4-4:

SPI ROM CONNECTION

SPI_CE_n

CE#

CLK

SPI_CLK / SCL

SPI ROM

USB2660/60i

SPI_DO / SDA / SPI_SPD_SEL

SPI_DI

SI

SO

2

FIGURE 4-5:

I C CONNECTION

3. 3V

10K

SCL

3. 3V

10K

I²C ROM

USB2660/60i

SDA

DS00001931B-page 18

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

5.0

PIN RESET STATES

FIGURE 5-1:

PIN RESET STATES

Hardware

Firmware

Initialization

Operational

Voltage

Signal

RESET

(v)

RESET

V_DD33

Time

(t)

V_SS

TABLE 5-1:

Symbol

LEGEND FOR PIN RESET STATES TABLE

Description

0

Output driven low

1

Output driven high

IP

Input enabled

PU

PD

none

--

Hardware enables pull-up

Hardware enables pull-down

Hardware disables pad

Hardware disables function

Z

Hardware disables pad. Both output driver and

input buffers are disabled.

5.1

Pin Reset States

TABLE 5-2:

USB2660/USB2660I RESET STATES TABLE

Reset State

Input/

Output

1

Pin Name

USBDN_DM2

USBDN_DP2

USBDN_DM3

USBDN_DP3

PRTCTL2

Function

PU/PD

PD

--

USBDN_DM2

USBDN_DP2

USBDN_DM3

USBDN_DP3

PRTCTL

IP

0

2

3

4

6

7

PRTCTL3

PRTCTL

0

--

8

SD2_nCD

none

IP

Z

PU

--

9

SD2_D1

 2010-2019 Microchip Technology Inc.

DS00001931B-page 19

USB2660/USB2660i

TABLE 5-2:

USB2660/USB2660I RESET STATES TABLE (CONTINUED)

Reset State

Input/

Output

10

11

12

13

15

16

17

18

19

20

21

22

25

26

27

28

29

30

31

32

34

35

36

37

38

39

40

Pin Name

SD2_D0

Function

SD2_D0

SD2_D7

SD2_D6

SD2_CLK

none

PU/PD

--

Z

0

SD2_D7

--

SD2_D6

--

SD2_CLK

--

CRD_PWR2

--

SD2_D5

SD2_CMD

SD2_D4

SD2_D3

SD2_D2

none

--

SD2_CMD

--

SD2_D4

--

SD2_D3

--

SD2_D2

--

SD1_WP / MS_SCLK / xD_D4

SD1_nCD

--

none

IP

Z

IP

Z

IP

Z

PU

--

SD1_D1 / MS_D5 / xD_D3

SD1_D0 / MS_D4 / xD_D2

SD1_D7 / MS_D6 / xD_D1

SD1_D6 / MS_D7 / xD_D0

SD1_CLK / MS_BS / xD_nWP

xD_nWE

none

--

none

--

none

--

none

--

xD_nWE

none

--

SD1_D5 / MS_D1 / xD_ALE

SD1_CMD / MS_D0 / xD_CLE

xD_nCE

--

none

--

xD_nCE

xD_nRE

xD_nB/R

none

--

xD_nRE

--

xD_nB/R

--

xD_nCD

PU

--

SD1_D4 / MS_D2 / xD_D7

MS_INS

none

PU

--

SD1_D3 / MS_D3 / xD_D6

none

DS00001931B-page 20

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

TABLE 5-2:

USB2660/USB2660I RESET STATES TABLE (CONTINUED)

Reset State

Input/

Output

41

43

44

45

49

50

51

52

53

54

55

56

58

59

Pin Name

SD1_D2 / xD_D5

CRD_PWR1

NC

Function

none

PU/PD

Z

--

none

0

--

SD2_WP

none

0

--

SPI_CE_n

none

1

--

SPI_CLK / SCL

SPI_DO / SDA / SPI_SPD_SEL

SPI_DI

0

--

none

0

--

SPI_DI

none

IP

0

PD

--

LED / TXD

nRESET

VBUS_DET

TEST

IP

Z

--

VBUS_DET

TEST

--

PD

--

USBUP_DP

USBUP_DM

USBUP_DP

USBUP_DM

Z

--

 2010-2019 Microchip Technology Inc.

DS00001931B-page 21

USB2660/USB2660i

6.0

6.1

CONFIGURATION OPTIONS

Hub

Microchip’s USB 2.0 hub is fully compliant to the Universal Serial Bus Specification available from the USB Imple-

menter’s Forum found at http://www.usb.org (Revision 2.0 April 27, 2000 and the 12/7/2000 and 5/28/2002 Errata).

Please reference Chapter 11 (Hub Specification) for general details regarding hub operation and functionality.

For performance reasons, the hub provides 1 transaction translator (TT) that is shared by both downstream ports

defined as a single-TT configuration. The TT contains 4 non-periodic buffers.

6.1.1

HUB CONFIGURATION OPTIONS

The Microchip hub supports a large number of features (some are mutually exclusive), and must be configured in order

to correctly function when attached to a USB host controller. There are two principal ways to configure the hub:

• via the internal default settings or

• by settings stored in an external EEPROM or SPI Flash device.

6.1.1.1

Power Switching Polarity

The hub will only support active high power controllers.

6.1.2

VBUS DETECT

According to Section 7.2.1 of the USB 2.0 Specification, a device cannot provide power to its D+ or D- pull-up resistors

unless the upstream port’s VBUS is in the asserted (powered) state. The VBUS_DET pin on the hub monitors the state

of the upstream VBUS signal and will not pull-up the D+ resistor if VBUS is not active. If VBUS goes from an active to

an inactive state (not powered), the hub will remove power from the D+ pull-up resistor within 10 seconds.

6.2

Card Reader

The Microchip USB2660/USB2660i is fully compliant with the following flash media card reader specifications:

• Secure Digital 2.0 / MultiMediaCard 4.2

- SD 2.0, HS-SD, HC-SD

- TransFlash™ and reduced form factor media

- 1/4/8 bit MMC 4.2

• Memory Stick 1.43

• Memory Stick Pro Format 1.02

• Memory Stick Pro-HG Duo Format 1.01

- Memory Stick, MS Duo, HS-MS, MS Pro-HG, MS Pro

• Memory Stick Duo 1.10

• xD-Picture Card 1.2

6.3

System Configurations

6.3.1

EEPROM/SPI INTERFACE

The USB2660/USB2660i can be configured via a 2-wire (I²C) EEPROM (512x8) or an external SPI flash device con-

taining the firmware for the USB2660/USB2660i. If an external configuration device does not exist the internal default

values will be used. If one of the external devices is used for configuration, the OEM can update the values through the

USB interface. The hub will then “attach” to the upstream USB host.

The USBDM tool set is available in the USB264x Hub Card reader combo software release package. To download the

software package from Microchip's website, please visit:

http://www.microchip.com/search/searchapp/searchhome.aspx?id=2&q=mkt/CW_SFT_PUB.nsf/Agree-

ments/OBJ+Hub+Card+Reader

to go to the OBJ Hub Card Reader Software Download Agreement. Review the license, and if you agree, check the "I

agree" box and then select “Confirm”. You will then be able to download USB264x Hub Card reader combo release

package zip file containing the USBDM tool set.

DS00001931B-page 22

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

Please note that the following applies to the system values and descriptions when used:

• N/A = Not applicable to this part

• Reserved = For internal use

6.3.2

EEPROM DATA DESCRIPTOR

INTERNAL FLASH MEDIA CONTROLLER CONFIGURATIONS

TABLE 6-1:

Address

00h

Register Name

Description

Internal Default Value

USB_SER_LEN

USB Serial String

Descriptor Length

1Ah

01h

USB_SER_TYP

USB_SER_NUM

USB Serial String

Descriptor Type

03h

02h-19h

USB Serial Number

"000008264001"

(See Note 6-1)

1Ah-1Bh

1Ch-1Dh

1Eh

USB_VID

USB_PID

USB Vendor Identifier

USB Product Identifier

0424

4040

04h

USB_LANG_LEN

USB Language String Descriptor

Length

1Fh

20h

USB_LANG_TYP

USB_LANG_ID_LSB

USB_LANG_ID_MSB

USB_MFR_STR_LEN

USB_MFR_STR_TYP

USB_MFR_STR

USB Language String Descriptor

Type

03h

USB Language Identifier

Least Significant Byte

09h

(See Note 6-3)

21h

USB Language Identifier

Most Significant Byte

04h

(See Note 6-3)

22h

USB Manufacturer String

Descriptor Length

10h

03h

23h

USB Manufacturer String

Descriptor Type

24h-31h

USB Manufacturer String

“Generic”

(See Note 6-1)

32h-5Dh

5Eh

Reserved

-

00h

30h

USB_PRD_STR_LEN

USB Product String

Descriptor Length

5Fh

USB_PRD_STR_TYP

USB_PRD_STR

USB Product String

Descriptor Type

03h

60h-99h

USB Product String

"Ultra Fast Media Reader"

(See Note 6-1)

9Ah

9Bh

9Ch

9Dh

9Eh

9Fh

A0h

USB_BM_ATT

USB_MAX_PWR

ATT_LB

USB BmAttribute

USB Max Power

Attribute Lo byte

Attribute Hi Lo byte

Attribute Lo Hi byte

Attribute Hi byte

80h

30h (96 mA)

40h (Reverse SD_WP only)

ATT_HLB

80h (Reverse SD2_WP only)

ATT_LHB

00h

ATT_HB

MS_PWR_LB

Memory Stick Device

Power Lo byte

A1h

MS_PWR_HB

Memory Stick Device

Power Hi byte

0Ah

A2h-A3h

A4h

Not Applicable

SM_PWR_LB

-

00h

Smart Media Device

Power Lo byte

00h

(See Note 6-2)

A5h

SM_PWR_HB

Smart Media Device

Power Hi byte

0Ah

(See Note 6-2)

 2010-2019 Microchip Technology Inc.

DS00001931B-page 23

USB2660/USB2660i

TABLE 6-1:

Address

A6h

INTERNAL FLASH MEDIA CONTROLLER CONFIGURATIONS (CONTINUED)

Register Name

Description

Internal Default Value

SD_PWR_LB

Secure Digital Device

Power Lo byte

00h

A7h

SD_PWR_HB

Secure Digital Device

Power Hi byte

0Ah

A8h

LED_BLK_INT

LED_BLK_DUR

DEV0_ID_STR

DEV1_ID_STR

DEV2_ID_STR

LED Blink Interval

02h

28h

A9h

LED Blink After Access

Device 0 Identifier String

Device 1 Identifier String

Device 2 Identifier String

AAh - B0h

B1h - B7h

B8h - BEh

N/A

“MS”

“SM”

(See Note 6-2)

BFh - C5h

C6h - CDh

CEh - D2h

D3h

DEV3_ID_STR

INQ_VEN_STR

INQ_PRD_STR

DYN_NUM_LUN

DEV_LUN_MAP

Reserved

Device 3 Identifier String

Inquiry Vendor String

Inquiry Product String

Dynamic Number of LUNs

Device to LUN Mapping

-

“SD/MMC”

“Generic”

82660

01h

D4h - D7h

D8h - DAh

DBh - DDh

FFh, 00h, 00h, 00h

00h, 06h, 0Dh

59h, 56h, 97h

Reserved

-

TABLE 6-2:

Address

HUB CONTROLLER CONFIGURATIONS

Register Name

Description

Internal Default Value

DEh

DFh

E0h

E1h

E2h

E3h

E4h

E5h

E6h

E7h

E8h

E9h

EAh

EBh

ECh

EDh

EEh

EFh

F0h

F1h

F2h

F3h

VID_LSB

VID_MSB

Vendor ID Least Significant Byte

Vendor ID Most Significant Byte

Product ID Least Significant Byte

Product ID Most Significant Byte

Device ID Least Significant Byte

Device ID Most Significant Byte

Configuration Data Byte 1

Configuration Data Byte 2

Configuration Data Byte 3

Non-Removable Devices

Port Disable (Self)

24h

04h

60h

26h

A1h

08h

8Bh

28h

00h

02h

00h

01h

32h

01h

32h

00h

PID_LSB

PID_MSB

DID_LSB

DID_MSB

CFG_DAT_BYT1

CFG_DAT_BYT2

CFG_DAT_BYT3

NR_DEVICE

PORT_DIS_SP

PORT_DIS_BP

MAX_PWR_SP

MAX_PWR_BP

HC_MAX_C_SP

HC_MAX_C_BP

PWR_ON_TIME

BOOST_UP

BOOST_3:0

PRT_SWP

Port Disable (Bus)

Max Power (Self)

Max Power (Bus)

Hub Controller Max Current (Self)

Hub Controller Max Current (Bus)

Power-on Time

Boost_Up

Boost_3:0

Port Swap

PRTM12

Port Map 12

PRTM3

Port Map 3

DS00001931B-page 24

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

TABLE 6-3:

Address

OTHER INTERNAL CONFIGURATIONS

Register Name

Description

Internal Default Value

F4h

F5h

Reserved

-

00h

66h

F6h

Reserved

00h

F7h

Reserved

00h

F8h-FAh

FBh

Reserved

59h, 56h, 97h

00h

Not Applicable

NVSTORE_SIG

FCh-FFh

Non-Volatile Storage Signature

“ATA2”

6.4

Set bit 7 of bmAttribute to enable the registers in Table 6-4.

TABLE 6-4:

Address

INTERNAL FLASH MEDIA CONTROLLER EXTENDED CONFIGURATIONS

Register Name

Description

Internal Default Value

100h - 106h

107h - 10Dh

10Eh - 114h

115h - 11Bh

11Ch - 122h

123h - 129h

12Ah-145h

CLUN0_ID_STR

CLUN1_ID_STR

CLUN2_ID_STR

CLUN3_ID_STR

CLUN4_ID_STR

DEV4_ID_STR

Not applicable

Combo LUN 0 Identifier String

Combo LUN 1 Identifier String

Combo LUN 2 Identifier String

Combo LUN 3 Identifier String

Combo LUN 4 Identifier String

Device 4 Identifier String

-

“COMBO”

"SD/MMC2"

00h

12Ah - 130h

131h - 137h

138h - 13Eh

13Fh - 145h

00h

DYN_NUM_

EXT_LUN

146h

Dynamic Number of Extended LUNs

Device to LUN Mapping

01h

147h - 14Bh

14Ch

DEV_LUN_MAP

SD2_PWR_LB

01h, FFh, FFh, FFh, FFh

0Ah

Second Secure Digital

Power Lo byte-

14Dh

SD2_PWR_HB

Second Secure Digital

Power Hi byte

00h

14Eh-17Bh

Not Applicable

-

00h

17Ch-17Fh

NVSTORE_SIG2

Non-Volatile Storage Signature

“ecf1”

Note 6-1

This value is a UNICODE UTF-16LE encoded string value that meets the USB 2.0 specification

(Revision 2.0, 2000). Values in double quotations without this note are ASCII values.

Note 6-2

Note 6-3

A value of “SM” will be overridden with “xD” once an xD-Picture Card has been identified.

For a list of the most current 16-bit language ID’s defined by the USB-IF, please visit

http://www.unicode.org or consult The Unicode Standard, Worldwide Character Encoding, (Version

4.0), The Unicode Consortium, Addison-Wesley Publishing Company, Reading, Massachusetts.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 25

USB2660/USB2660i

6.4.1

EEPROM DATA DESCRIPTOR REGISTER DESCRIPTIONS

00h: USB Serial String Descriptor Length

6.4.1.1

Byte

Name

Description

0

USB_SER_LEN

USB serial string descriptor length as defined by Section 9.6.7 “String” of the

USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength” which

describes the size of the string descriptor (in bytes).

6.4.1.2

01h: USB Serial String Descriptor Type

Byte

Name

Description

1

USB_SER_TYP

USB serial string descriptor type as defined by Section 9.6.7 “String” of the

USB 2.0 Specification (Revision 2.0, 2000). This field is the “bDescriptorType”

which is a constant value associated with a string descriptor type.

6.4.1.3

02h-19h: USB Serial Number Option

Byte

25:2

Name

Description

Maximum string length is 12 hex digits. Must be unique to each device.

USB_SER_NUM

6.4.1.4

1Ah-1Bh: USB Vendor ID Option

Byte

Name

Description

1:0

USB_VID

This ID is unique for every vendor. The vendor ID is assigned by the USB

Implementer’s Forum.

6.4.1.5

1Ch-1Dh: USB Product ID Option

Byte

Name

Description

This ID is unique for every product. The product ID is assigned by the vendor.

1:0

USB_PID

6.4.1.6

1Eh: USB Language Identifier Descriptor Length

Byte

Name

Description

0

USB_LANG_LEN USB language ID string descriptor length as defined by Section 9.6.7 “String”

of the USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength”

which describes the size of the string descriptor (in bytes).

6.4.1.7

1Fh: USB Language Identifier Descriptor Type

Byte

Name

Description

1

USB_LANG_TYP USB language ID string descriptor type as defined by Section 9.6.7 “String” of

the USB 2.0 Specification (Revision 2.0, 2000). This field is the

“bDescriptorType” which is a constant value associated with a string descriptor

type.

6.4.1.8

20h: USB Language Identifier Least Significant Byte

Byte

Name

Description

2

USB_LANG_ID

_LSB

English language code = ‘0409’. See Note 6-3 to reference additional language

ID’s defined by the USB-IF.

DS00001931B-page 26

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

6.4.1.9

Byte

21h: USB Language Identifier Most Significant Byte

Name

Description

3

USB_LANG_ID

_MSB

English language code = ‘0409’. See Note 6-3 to reference additional language

ID’s defined by the USB-IF.

6.4.1.10

22h: USB Manufacturer String Descriptor Length

Byte

Name

Description

0

USB_MFR_STR

_LEN

USB manufacturer string descriptor length as defined by Section 9.6.7 “String”

of the USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength”

which describes the size of the string descriptor (in bytes).

6.4.1.11

23h: USB Manufacturer String Descriptor Type

Byte

Name

Description

1

USB_MFR_STR

_TYP

USB manufacturer string descriptor type as defined by Section 9.6.7 “String” of

the USB 2.0 Specification (Revision 2.0, 2000). This field is the

“bDescriptorType” which is a constant value associated with a string descriptor

type.

6.4.1.12

24h-31h: USB Manufacturer String Option

Byte

Name

Description

15:2

USB_MFR_STR

The maximum string length is 28 characters.

6.4.1.13

32h-5Dh: Reserved

Byte

Name

Description

59:16

Reserved

Reserved.

6.4.1.14

5Eh: USB Product String Descriptor Length

Byte

Name

Description

0

USB_PRD_STR

_LEN

USB product string descriptor length as defined by Section 9.6.7 “String” of the

USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength” which

describes the size of the string descriptor (in bytes).

6.4.1.15

5Fh: USB Product String Descriptor Type

Byte

Name

Description

1

USB_PRD_STR

_TYP

USB product string descriptor type as defined by Section 9.6.7 “String” of the

USB 2.0 Specification (Revision 2.0, 2000). This field is the “bDescriptorType”

which is a constant value associated with a string descriptor type.

6.4.1.16

60h-99h: USB Product String Option

Byte

Name

Description

59:2

USB_PRD_STR

This string will be used during the USB enumeration process in the Windows^®

operating system. Maximum string length is 28 characters.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 27

USB2660/USB2660i

6.4.1.17

9Ah: USB BmAttribute (1 byte)

Bit

Name

Description

7:0

USB_BM_ATT

Self- or Bus-Power: Selects between self- and bus-powered operation.

The hub is either self-powered (draws less than 2 mA of upstream bus power)

or bus-powered (limited to a 100 mA maximum of upstream power prior to

being configured by the host controller).

When configured as a bus-powered device, the Microchip hub consumes less

than 100 mA of current prior to being configured. After configuration, the bus-

powered Microchip hub (along with all associated hub circuitry, any embedded

devices if part of a compound device, and 100 mA per externally available

downstream port) must consume no more than 500 mA of upstream VBUS

current. The current consumption is system dependent, and the OEM must

ensure that the USB 2.0 Specification is not violated.

When configured as a self-powered device, <1 mA of upstream VBUS current

is consumed and all ports are available, with each port being capable of

sourcing 500 mA of current.

80 = Bus-powered operation (default)

C0 = Self-powered operation

A0 = Bus-powered operation with remote wake-up

E0 = Self-powered operation with remote wake-up

6.4.1.18

9Bh: USB MaxPower (1 byte)

Bit

Name

Description

7:0

USB_MAX_PWR

USB Max Power per the USB 2.0 Specification. Do NOT set this value greater

than 100 mA.

DS00001931B-page 28

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

6.4.1.19

9Ch-9Fh: Attribute Byte Descriptions

Byte

Byte Name

Bit

Description

0

ATT_LB

3:0

4

Always reads ‘0’.

Inquire Manufacturer and Product ID Strings

‘1’ - Use the Inquiry Manufacturer and Product ID Strings.

‘0’ (default) - Use the USB Descriptor Manufacturer and Product ID Strings.

Always reads ‘0’.

5

6

Reverse SD Card Write Protect Sense

‘1’ (default) - SD cards will be write protected when SW_nWP is high, and

writable when SW_nWP is low.

‘0’ - SD cards will be write protected when SW_nWP is low, and writable

when SW_nWP is high.

7

Extended Configuration Enable

'1' - This bit must be set to '1' to enable editing, updating, and reading from

registers 100h-17Fh.

'0' - The internal configuration is loaded. When this bit is not set (and it

equals '0'). It will not read from registers 100h-17Fh.

1

ATT_HLB

3:0

4

Always reads ‘0’.

Activity LED True Polarity

‘1’ - Activity LED to Low True.

‘0’ (default) - Activity LED polarity to High True.

Common Media Insert / Media Activity LED

5

‘1’ - The activity LED will function as a common media inserted/media access

LED.

‘0’ (default) - The activity LED will remain in its idle state until media is

accessed.

6

7

Always reads ‘0’.

Reverse SD2 Card Write Protect Sense

‘1’ (default) - SD cards in LUN 1 will be write protected when SW_nWP is

high, and writable when SW_nWP is low.

‘0’ - SD cards in LUN 1 will be write protected when SW_nWP is low, and

writable when SW_nWP is high.

2

ATT_LHB

0

Attach on Card Insert / Detach on Card Removal

‘1’ - Attach on Insert is enabled.

‘0’ (default) - Attach on Insert is disabled.

Always reads ‘0’.

1

2

Enable Device Power Configuration

‘1’ - Custom Device Power Configuration stored in the NVSTORE is used.

‘0’ (default) - Default Device Power Configuration is used.

7:3

6:0

7

Always reads ‘0’.

xD Player Mode

3

ATT_HB

 2010-2019 Microchip Technology Inc.

DS00001931B-page 29

USB2660/USB2660i

6.4.2

A0H-A7H: DEVICE POWER CONFIGURATION

The USB2660/USB2660i has two internal FETs which can be utilized for card power. For information about the other

internal FET, please see Section 6.4.5.10, "14Ch-14Dh: Second Secure Digital Device Power Configuration," on

page 42. This section describes the default internal configuration. The settings are stored in NVSTORE and provide the

following features:

1. A card can be powered by an external FET or by an internal FET.

2. The power limit can be set to 100 mA or 200 mA (Default) for the internal FET.

Each media uses two bytes to store its device power configuration. Bit 3 selects between internal or external card power

FET options. For internal FET card power control, bits 0 through 2 are used to set the power limit. The “Device Power

Configuration” bits are ignored unless the “Enable Device Power Configuration” bit is set. See Section 6.4.1.19, "9Ch-

9Fh: Attribute Byte Descriptions," on page 29.

6.4.2.1

A0h-A1h: Memory Stick Device Power Configuration

FET

Type

Bits

Bit Type

Low Nibble

Description

0

1

2

FET Lo Byte

MS_PWR_LB

3:0

7:4

3:0

0000b Disabled

High Nibble

FET Hi Byte

MS_PWR_HB

Low Nibble

0001b External FET enabled

1000b Internal FET with 100 mA power limit

1010b Internal FET with 200 mA power limit

3

7:4

High Nibble

0000b Disabled

6.4.2.2

A2h-A3h: Not Applicable

Byte

1:0

Name

Description

Not Applicable

Not applicable.

6.4.2.3

A4h-A5h: Smart Media Device Power Configuration

FET

Type

Bits

Bit Type

Low Nibble

Description

0

1

2

FET Lo Byte

SM_PWR_LB

3:0

7:4

3:0

0000b Disabled

High Nibble

FET Hi Byte

SM_PWR_HB

Low Nibble

0001b External FET enabled

1000b Internal FET with 100 mA power limit

1010b Internal FET with 200 mA power limit

3

7:4

High Nibble

0000b Disabled

6.4.2.4

A6h-A7h: Secure Digital Device Power Configuration

FET

Type

Bits

Bit Type

Low Nibble

Description

0

1

2

FET Lo Byte

SD_PWR_LB

3:0

7:4

3:0

0000b Disabled

High Nibble

FET Hi Byte

SD_PWR_HB

Low Nibble

0001b External FET enabled

1000b Internal FET with 100 mA power limit

1010b Internal FET with 200 mA power limit

3

7:4

High Nibble

0000b Disabled

DS00001931B-page 30

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

6.4.2.5

Byte

A8h: LED Blink Interval

Name

Description

0

LED_BLK_INT

The blink rate is programmable in 50 ms intervals. The high bit (7) indicates

an idle state:

‘0’ - Off

‘1’ - On

The remaining bits (6:0) are used to determine the blink interval up to a max

of 128 x 50 ms.

6.4.2.6

A9h: LED Blink Duration

Byte

Name

Description

1

LED_BLK_DUR

LED Blink After Access. This byte is used to designate the number of seconds

that the LED will continue to blink after a drive access. Setting this byte to "05"

will cause the LED to blink for 5 seconds after a drive access.

6.4.3

DEVICE ID STRINGS

These bytes are used to specify the LUN descriptor returned by the device. These bytes are used in combination with

the device to LUN mapping bytes in applications where the OEM wishes to reorder and rename the LUNs. If multiple

devices are mapped to the same LUN (a COMBO LUN), then the CLUN#_ID_STR will be used to name the COMBO

LUN instead of the individual device strings. When applicable, the "SM" value will be overridden with xD once an xD-

Picture Card has been identified.

6.4.3.1

AAh-B0h: Device 0 Identifier String

Byte

6:0

Name

Description

DEV0_ID_STR

Not applicable.

6.4.3.2

B1h-B7h: Device 1 Identifier String

Byte

Name

6:0

DEV1_ID_STR

This ID string is associated with the Memory Stick device.

6.4.3.3

B8h-BEh: Device 2 Identifier String

Byte

Name

Description

This ID string is associated with the Smart Media (Note 6-2) device.

6:0

DEV2_ID_STR

6.4.3.4

BFh-C5h: Device 3 Identifier String

Byte

Name

Description

This ID string is associated with the Secure Digital / MultiMediaCard device.

6:0

DEV3_ID_STR

6.4.3.5

C6h-CDh: Inquiry Vendor String

Byte

Name

Description

7:0

INQ_VEN_STR

If bit 4 of the 1st attribute byte is set, the device will use these strings in

response to a USB inquiry command, instead of the USB descriptor

manufacturer and product ID strings.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 31

USB2660/USB2660i

6.4.3.6

CEh-D2h: Inquiry Product String

Byte

4:0

Name

Description

INQ_PRD_STR

If bit 4 of the 1st attribute byte is set, the device will use these strings in

response to a USB inquiry command, instead of the USB descriptor

manufacturer and product ID strings.

6.4.3.7

D3h: Dynamic Number of LUNs

Byte

Name

Description

7:0

DYN_NUM_LUN

These bytes are used to specify the number of LUNs the device exposes to

the host. These bytes are also used for icon sharing by assigning more than

one LUN to a single icon. This is used in applications where the device utilizes

a combo socket and the OEM wishes to have only a single icon displayed for

one or more interfaces.

If this field is set to "FF", the program assumes that you are using the default

value and icons will be configured per the default configuration.

6.4.3.8

D4h-D7h: Device to LUN Mapping

Byte

Name

Description

3:0

DEV_LUN_MAP

These registers map a device controller (SD/MMC, SM (Note 6-2), and MS)

to a Logical Unit Number (LUN). The device reports the mapped LUNs to the

USB host in the USB descriptor during enumeration. The icon installer

associates custom icons with the LUNs specified in these fields.

Setting a register to "FF" indicates that the device is not mapped. Setting all

of the DEV_LUN_MAP registers for all devices to "FF" forces the use of the

default mapping configuration. Not all configurations are valid. Valid

configurations depend on the hardware, packaging, and OEM board layout.

The number of unique LUNs mapped must match the value in the Section

6.4.3.7, "D3h: Dynamic Number of LUNs," on page 32.

6.4.3.9

D8h-DDh: Reserved

Byte

Name

Description

2:0

Reserved

Reserved.

6.4.4

6.4.4.1

HUB CONTROLLER CONFIGURATIONS

DEh: Vendor ID (LSB)

Bit

7:0

Byte Name

Description

VID_LSB

Least Significant Byte of the Vendor ID. This is a 16-bit value that uniquely

identifies the vendor of the user device (assigned by USB Implementer’s

Forum).

6.4.4.2

DFh: Vendor ID (MSB)

Bit

Byte Name

Description

7:0

VID_MSB

Most Significant Byte of the Vendor ID. This is a 16-bit value that uniquely

identifies the vendor of the user device (assigned by USB Implementer’s

Forum).

DS00001931B-page 32

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USB2660/USB2660i

6.4.4.3

E0h: Product ID (LSB)

Bit

Name

Description

7:0

PID_LSB

Least Significant Byte of the Product ID. This is a 16-bit value that the vendor

can assign that uniquely identifies this particular product.

6.4.4.4

E1h: Product ID (MSB)

Bit

Name

Description

7:0

PID_MSB

Most Significant Byte of the Product ID. This is a 16-bit value that the vendor

can assign that uniquely identifies this particular product.

6.4.4.5

E2h: Device ID (LSB)

Bit

Name

Description

7:0

DID_LSB

Least Significant Byte of the Device ID. This is a 16-bit device release number

in BCD (binary coded decimal) format.

6.4.4.6

E3h: Device ID (MSB)

Bit

Name

Description

7:0

DID_MSB

Most Significant Byte of the Device ID. This is a 16-bit device release number

in BCD format.

6.4.4.7

E4h: Configuration Data Byte 1 (CFG_DAT_BYT1)

Bit

Name

Description

7

SELF_BUS_PWR

Self- or Bus-Power: Selects between self- and bus-powered operation.

The hub is either self-powered (draws less than 2 mA of upstream bus power)

or bus-powered (limited to a 100 mA maximum of upstream power prior to

being configured by the host controller).

When configured as a bus-powered device, the Microchip hub consumes less

than 100 mA of current prior to being configured. After configuration, the bus-

powered Microchip hub (along with all associated hub circuitry, any embedded

devices if part of a compound device, and 100 mA per externally available

downstream port) must consume no more than 500 mA of upstream VBUS

current. The current consumption is system dependent, and the OEM must

ensure that the USB 2.0 specifications are not violated.

When configured as a self-powered device, <1 mA of upstream VBUS current

is consumed and all ports are available, with each port being capable of

sourcing 500 mA of current.

‘0’ = Bus-powered operation

‘1’ = Self-powered operation

6

5

Reserved

HS_DISABLE

Hi-Speed Disable: Disables the capability to attach as either a Hi-/Full-Speed

device, and forces attachment as Full-Speed only (i.e. no Hi-Speed support).

‘0’ = Hi-/Full-Speed

‘1’ = Full-Speed-Only (Hi-Speed disabled!)

4

Reserved

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DS00001931B-page 33

USB2660/USB2660i

Bit

Name

Description

3

EOP_DISABLE

EOP Disable: Disables EOP generation of EOF1 when in Full-Speed mode.

During FS operation only, this permits the hub to send EOP if no downstream

traffic is detected at EOF1. See Section 11.3.1 of the USB 2.0 Specification

for additional details.

‘0’ = An EOP is generated at the EOF1 point if no traffic is detected.

‘1’ = EOP generation at EOF1 is disabled (normal USB operation).

Note:

Generation of an EOP at the EOF1 point may prevent a host

controller (operating in FS mode) from placing the USB bus in

suspend.

2:1

CURRENT_SNS

Over-Current Sense: Selects current sensing on a port-by-port basis, all ports

ganged, or none (only for bus-powered hubs). The ability to support current

sensing on a per port or ganged basis is dependent upon the hardware

implementation.

‘00’ = Ganged sensing (all ports together)

‘01’ = Individual (port-by-port)

‘1x’ = Over-current sensing not supported (must only be used with bus-

powered configurations!)

0

PORT_PWR

Port Power Switching: Enables power switching on all ports simultaneously

(ganged), or port power is individually switched on and off on a port-by-port

basis (individual). The ability to support power enabling on a port or ganged

basis is dependent upon the hardware implementation.

‘0’ = Ganged switching (all ports together)

‘1’ = Individual port-by-port switching

6.4.4.8

E5h: Configuration Data Byte 2 (CFG_DAT_BYT2)

Bit

Name

Description

7:6

5:4

Reserved

OC_TIMER

OverCurrent Timer: Over-current timer delay.

‘00’ = 50 ns

‘01’ = 100 ns

‘10’ = 200 ns

‘11’ = 400 ns

3

COMPOUND

Compound Device: Allows OEM to indicate that the hub is part of a compound

device (per the USB 2.0 Specification). The applicable port(s) must also be

defined as having a “non-removable device”.

Note:

When configured via strapping options, declaring a port as non-

removable automatically causes the hub controller to report that it is

part of a compound device.

‘0’ = No

‘1’ = Yes, the hub is part of a compound device

2:0

Reserved

DS00001931B-page 34

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

6.4.4.9

Bit

E6h: Configuration Data Byte 3 (CFG_DAT_BYT3)

Name

Description

7:4

3

Reserved

PRTMAP_EN

Port Mapping Enable: Selects the method used by the hub to assign port

numbers and disable ports.

‘0’ = Standard Mode. Strap options or the following registers are used to define

which ports are enabled, and the ports are mapped as port ‘n’ on the hub is

reported as port ‘n’ to the host, unless one of the ports is disabled, then the

higher numbered ports are remapped in order to report contiguous port

numbers to the host.

Register 300Ah: Port disable for self-powered operation (Reset = 0x00).

Register 300Bh: Port disable for bus-powered operation (Reset = 0x00).

‘1’ = Port Map mode. The mode enables remapping via the registers defined

below.

Register 30FBh: Port Map 12 (Reset = 0x00)

Register 30FCh: Port Map 3 (Reset = 0x00)

2:0

Reserved

6.4.4.10

E7h: Non-Removable Device

Bit

Byte Name

Description

7:0

NR_DEVICE

Indicates which port(s) include non-removable devices.

‘0’ = Port is removable

‘1’ = Port is non-removable

Informs the host if one of the active ports has a permanent device that is

undetachable from the hub. The device must provide its own descriptor data.

When using the internal default option, the NON_REM[1:0] pins will designate

the appropriate ports as being non-removable.

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Controls physical port 3

Bit 2= Controls physical port 2

Bit 1= Controls physical port 1

Bit 0= Reserved

Note:

Bit 1 must be set to a ‘1’ by the firmware for proper identification of

the card reader as a non-removable device.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 35

USB2660/USB2660i

6.4.4.11

E8h: Port Disable For Self-Powered Operation

Bit

Byte Name

Description

7:0

PORT_DIS_SP

Disables 1 or more ports.

‘0’ = Port is available

‘1’ = Port is disabled

During self-powered operation this register selects the ports which will be

permanently disabled. The ports are unavailable to be enabled or enumerated

by a host controller. The ports can be disabled in any order since the internal

logic will automatically report the correct number of enabled ports to the USB

host and will reorder the active ports in order to ensure proper function.

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Controls physical port 3

Bit 2= Controls physical port 2

Bit 1= Controls physical port 1

Bit 0= Reserved

6.4.4.12

E9h: Port Disable For Bus-Powered Operation

Bit

Byte Name

Description

7:0

PORT_DIS_BP

Disables 1 or more ports.

‘0’ = Port is available

‘1’ = Port is disabled

During self-powered operation, this register selects the ports which will be

permanently disabled. The ports are unavailable to be enabled or enumerated

by a host controller. The ports can be disabled in any order, the internal logic

will automatically report the correct number of enabled ports to the USB host

and will reorder the active ports in order to ensure proper function.

When using the internal default option, the PRT_DIS[1:0] pins will disable the

appropriate ports.

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Controls physical port 3

Bit 2= Controls physical port 2

Bit 1= Controls physical port 1

Bit 0 is Reserved

6.4.4.13

EAh: Max Power For Self-Powered Operation

Bit

Byte Name

Description

7:0

MAX_PWR_SP

Value in 2 mA increments that the hub consumes from an upstream port

(VBUS) when operating as a self-powered hub. This value includes the hub

silicon along with the combined power consumption (from VBUS) of all

associated circuitry on the board. This value also includes the power

consumption of a permanently attached peripheral if the hub is configured as

a compound device, and the embedded peripheral reports 0 mA in its

descriptors.

Note:

The USB 2.0 Specification does not permit this value to exceed 100

mA.

DS00001931B-page 36

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

6.4.4.14

EBh: Max Power For Bus-Powered Operation

Bit

Byte Name

Description

7:0

MAX_PWR_BP

Value in 2 mA increments that the hub consumes from an upstream port

(VBUS) when operating as a bus-powered hub. This value includes the hub

silicon along with the combined power consumption (from VBUS) of all

associated circuitry on the board. This value also includes the power

consumption of a permanently attached peripheral if the hub is configured as

a compound device, and the embedded peripheral reports 0 mA in its

descriptors.

6.4.4.15

ECh: Hub Controller Max Current For Self-Powered Operation

Bit

Byte Name

Description

7:0

HC_MAX_C_SP

Value in 2 mA increments that the hub consumes from an upstream port

(VBUS) when operating as a self-powered hub. This value includes the hub

silicon along with the combined power consumption (from VBUS) of all

associated circuitry on the board. This value does NOT include the power

consumption of a permanently attached peripheral if the hub is configured as

a compound device.

Note:

The USB 2.0 Specification does not permit this value to exceed 100

mA.

A value of 50 (decimal) indicates 100 mA, which is the default value.

EDh: Hub Controller Max Current For Bus-Powered Operation

6.4.4.16

Bit

Byte Name

Description

7:0

HC_MAX_C_BP

Value in 2 mA increments that the hub consumes from an upstream port

(VBUS) when operating as a bus-powered hub. This value will include the hub

silicon along with the combined power consumption (from VBUS) of all

associated circuitry on the board. This value will NOT include the power

consumption of a permanently attached peripheral if the hub is configured as

a compound device.

A value of 50 (decimal) would indicate 100 mA, which is the default value.

6.4.4.17

EEh: Power-On Time

Bit

Byte Name

Description

7:0

PWR_ON_TIME

The length of time that it takes (in 2 ms intervals) from the time the host

initiated power-on sequence begins on a port until power is adequate on that

port. If the host requests the power-on time, the system software uses this

value to determine how long to wait before accessing a powered-on port.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 37

USB2660/USB2660i

6.4.4.18

EFh: Boost_Up

Bit

Name

Description

7:2

1:0

Reserved

BOOST_IOUT

USB electrical signaling drive strength boost bit for the upstream port ‘A’.

‘00’ = Normal electrical drive strength = No boost

‘01’ = Elevated electrical drive strength = Low (approximately 4% boost)

‘10’ = Elevated electrical drive strength = Medium (approximately 8% boost)

‘11’ = Elevated electrical drive strength = High (approximately 12% boost)

Note:

“Boost” could result in non-USB compliant parameters. OEM should

use a ‘00’ value unless specific implementation issues require

additional signal boosting to correct for degraded USB signaling

levels.

6.4.4.19

F0h: Boost_3:0

Bit

Name

Description

7:6

5:4

Reserved

BOOST_IOUT_3

Upstream USB electrical signaling drive strength boost bit for downstream

port ‘3’.

‘00’ = Normal electrical drive strength = No boost

‘01’ = Elevated electrical drive strength = Low (approximately 4% boost)

‘10’ = Elevated electrical drive strength = Medium (approximately 8% boost)

‘11’ = Elevated electrical drive strength = High (approximately 12% boost)

3:2

BOOST_IOUT_2

Upstream USB electrical signaling drive strength boost bit for downstream

port ‘2’.

‘00’ = Normal electrical drive strength = No boost

‘01’ = Elevated electrical drive strength = Low (approximately 4% boost)

‘10’ = Elevated electrical drive strength = Medium (approximately 8% boost)

‘11’ = Elevated electrical drive strength = High (approximately 12% boost)

Note:

“Boost” could result in non-USB Compliant parameters. OEM should

use a ‘00’ value unless specific implementation issues require

additional signal boosting to correct for degraded USB signaling

levels.

1:0

Reserved

Always reads ‘0’.

6.4.4.20

F1h: Port Swap

Bit

Byte Name

Description

7:0

PRT_SWP

Swaps the upstream and downstream USB DP and DM pins for ease of board

routing to devices and connectors.

‘0’ = USB D+ functionality is associated with the DP pin and D- functionality

is associated with the DM pin.

‘1’ = USB D+ functionality is associated with the DM pin and D- functionality

is associated with the DP pin.

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Controls physical port 3

Bit 2= Controls physical port 2

Bit 1= Reserved

Bit 0= Controls physical port 0

DS00001931B-page 38

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USB2660/USB2660i

6.4.4.21

F2h: Port Map 12

Bit

Byte Name

Description

7:0

PRTM12

PortMap register for ports 1 & 2

When a hub is enumerated by a USB host controller, the hub is only permitted

to report how many ports it has; the hub is not permitted to select a numerical

range or assignment. The host controller will number the downstream ports of

the hub starting with the number '1', up to the number of ports that the hub

reported having.

The host's port number is referred to as “logical port number” and the physical

port on the hub is the “physical port number”. When remapping mode is

enabled (see PRTMAP_EN in Register 08h: Configuration Data Byte 3) the

hub's downstream port numbers can be remapped to different logical port

numbers (assigned by the host).

Note:

The OEM must ensure that contiguous logical port numbers are

used, starting from number ‘1’ up to the maximum number of

enabled ports; this ensures that the hub's ports are numbered in

accordance with the way a host will communicate with the ports.

TABLE 6-5:

PORT MAP REGISTER FOR PORTS 1 & 2

Bit [7:4]

‘0000’

‘0001’

‘0010’

‘0011’

Physical port 2 is disabled

Physical port 2 is mapped to Logical port 1

Physical port 2 is mapped to Logical port 2

Physical port 2 is mapped to Logical port 3

Illegal; Do not use

‘0100’

to

‘1111’

Bit [3:0]

‘0000’

‘0001’

‘0010’

‘0011’

Physical port 1 is disabled

Physical port 1 is mapped to Logical port 1

Physical port 1 is mapped to Logical port 2

Physical port 1 is mapped to Logical port 3

Illegal; Do not use

‘0100’

to

‘1111’

 2010-2019 Microchip Technology Inc.

DS00001931B-page 39

USB2660/USB2660i

6.4.4.22

F3h: Port Map 3

Bit

Byte Name

Description

7:0

PRTM3

PortMap register for port 3.

When a hub is enumerated by a USB host controller, the hub is only permitted

to report how many ports it has; the hub is not permitted to select a numerical

range or assignment. The host controller will number the downstream ports of

the hub starting with the number '1', up to the number of ports that the hub

reported having.

The host's port number is referred to as “logical port number” and the physical

port on the hub is the “physical port number”. When remapping mode is

enabled (see PRTMAP_EN in Register 08h: Configuration Data Byte 3) the

hub's downstream port numbers can be remapped to different logical port

numbers (assigned by the host).

Note:

The OEM must ensure that contiguous logical port numbers are

used, starting from number ‘1’ up to the maximum number of

enabled ports; this ensures that the hub's ports are numbered in

accordance with the way a host will communicate with the ports.

TABLE 6-6:

PORT MAP REGISTER FOR PORT 3

Bit [7:4]

‘0000’

‘0001’

‘0010’

‘0011’

Reserved

‘0100’

to

Illegal; Do not use

‘1111’

Bit [3:0]

‘0000’

‘0001’

‘0010’

‘0011’

Physical port 3 is disabled

Physical port 3 is mapped to Logical port 1

Physical port 3 is mapped to Logical port 2

Physical port 3 is mapped to Logical port 3

Illegal; Do not use

‘0100’

to

‘1111’

6.4.4.23

F4h-FAh: Reserved

Byte

Byte Name

Description

6:0

Reserved

Reserved.

6.4.4.24

FBh: Not Applicable

Bit

Byte Name

7:0

Not Applicable

Not applicable.

DS00001931B-page 40

 2010-2019 Microchip Technology Inc.

USB2660/USB2660i

6.4.4.25

FCh-FFh: Non-Volatile Storage Signature

Byte

Name

Description

3:0

NVSTORE_SIG

This signature is used to verify the validity of the data in the first 256 bytes of

the configuration area. The signature must be set to ‘ATA2’ for

USB2660/USB2660i.

6.4.5

INTERNAL FLASH MEDIA CONTROLLER EXTENDED CONFIGURATIONS

Enable Registers 100h - 17Fh by setting bit 7 of bmAttribute.

6.4.5.1

100h-106h: Combo LUN 0 Identifier String

Byte

6:0

Name

Description

CLUN0_ID_STR

If the device to LUN mapping bytes have configured this LUN to be a combo

LUN, then these strings will be used to identify the LUN rather than the device

identifier strings.

6.4.5.2

107h-10Dh: Combo LUN 1 Identifier String

BYTE

NAME

DESCRIPTION

6:0

CLUN1_ID_STR

If the device to LUN bytes have configured this LUN to be a combo LUN, then

these strings will be used to identify the LUN rather than the device identifier

strings.

6.4.5.3

10Eh-114h: Combo LUN 2 Identifier String

Byte

Name

Description

6:0

CLUN2_ID_STR

If the device to LUN mapping bytes have configured this LUN to be a combo

LUN, then these strings will be used to identify the LUN rather than the device

identifier strings.

6.4.5.4

115h-11Bh: Combo LUN 3 Identifier String

Byte

Name

Description

6:0

CLUN3_ID_STR

If the device to LUN mapping bytes have configured this LUN to be a combo

LUN, then these strings will be used to identify the LUN rather than the device

identifier strings.

6.4.5.5

11Ch-122h: Combo LUN 4 Identifier String

Byte

Name

Description

6:0

CLUN4_ID_STR

If the device to LUN mapping bytes have configured this LUN to be a combo

LUN, then these strings will be used to identify the LUN rather than the device

identifier strings.

6.4.5.6

123h-129h: Device 4 Identifier String

Byte

Name

Description

6:0

DEV4_ID_STR

This ID string is associated with the second Secure Digital / MultiMediaCard

“SD/MMC2” device.

 2010-2019 Microchip Technology Inc.

DS00001931B-page 41

USB2660/USB2660i

6.4.5.7

130h-145h: Not Applicable

Byte

21:0

Name

Description

Not Applicable

Not applicable.

6.4.5.8

146h: Dynamic Number of Extended LUNs

Bit

Name

7:0

DYN_NUM_

EXT_LUN

These bytes are used to specify the number of LUNs the device exposes to

the host. These bytes are also used for icon sharing by assigning more than

one LUN to a single icon. This is used in applications where the device utilizes

a combo socket and the OEM wishes to have only a single icon displayed for

one or more interfaces.

If this field is set to "FF", the program assumes that you are using the default

value and icons will be configured per the default configuration.

6.4.5.9

147h-14Bh: Device to LUN Mapping