MAX3421EVKIT-1+ [MAXIM]
Mates to Keil MCB2130 Development Board;
| 型号： | MAX3421EVKIT-1+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Mates to Keil MCB2130 Development Board |
| 文件： | 总9页 (文件大小：203K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0697; Rev 0; 12/06
MAX3421 Evaluation Kit-1
vluates:1/MAX3420E
General Description
Features
The MAX3421 evaluation kit-1 (EV kit-1) provides a
proven design to evaluate the MAX3421E USB periph-
eral controller with SPI™ interface. The EV kit contains
both a MAX3421E USB host & peripheral controller and
a MAX3420E USB peripheral controller for user evalua-
tion and development. Connector J4 is wired to plug
into a Keil MCB2130 development board that contains
a Philips ARM controller (LPC2318). The design uses
two separate SPI ports to provide independent opera-
tion of the two USB controllers (MAX3421E and
MAX3420E).
♦ Ideal USB Training and Debugging System
♦ Mates to Keil MCB2130 Development Board
♦ Can Be Wired into User Systems
♦ MAX3421E Can Be Used as a USB Host or
Peripheral
♦ MAX3420E Provided On-Board as a Test
Peripheral
♦ MAX3420E Can be Used to Develop USB
Peripheral Code
The MAX3421 EV kit-1 adds USB functionality to any
microcontroller, microprocessor, DSP, CPLD, FPGA, or
ASIC with an SPI master interface, or five GPIO lines.
Ordering Information
The EV kit-1 board comes with the MAX3421EEHJ+
and MAX3420EECJ+ installed.
PART NUMBER
TYPE
PC INTERFACE
MAX3421EVKIT-1+
EV kit
USB
+Denotes a lead-free and RoHS-compliant EV kit.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
2.2µF 10ꢀ, 10V X5R ceramic
capacitors (0805)
TDK C2012X5R1A225KB
USB type A right-angle receptacle
Assmann Electronic AU-Y1006-R
C1, C3, C5, C6,
J1
1
6
C8, C9
USB type B right-angle receptacles
Assmann Electronic AU-Y1007-R
J2, J5
2
1µF 10ꢀ, 16V X5R ceramic
capacitors (0603)
TDK C1608X5R1C105K
C2, C4, C7,
4
C10
J3
J4
1
1
3-pin header
2 x 18 right-angle female receptacle
Not installed, 18pF 5ꢀ, 50V C0G
ceramic capacitors (0402)
TDK C1005C0G1H180J
6mm light-touch switches with
GND (H = 7)
Panasonic-ECG EVQ-PBC07K
C11–C14
0
PB1–PB8
8
4
0.1µF, 5V (min) X7R ceramic
capacitor (0603)
TDK C1608X7R1C104K,
C1608X7R1E104K, or
R1–R4
R5–R16
R17, R18
33Ω 5ꢀ resistors (0603)
12 470Ω 5ꢀ resistors (0603)
C15
1
2
2.2kΩ 5ꢀ resistors (0603)
C1608X7R1H104K
Panasonic-ECG ECJ-1VB1C104K
KEMET C0603C104K3RAC
AVX 0603ZC104KAT
MAX3421EEHJ+ USB peripheral/host
controller with SPI interface (32-pin,
5mm x 5mm, TQFP)
U1
U2
1
Green LEDs (0805)
Lumex Opto SML-LX0805UPGC-TR
MAX3420EECJ+ USB peripheral
controller with SPI
D1–D4
D5
4
1
1
interface (32-pin, 7mm x 7mm, TQFP)
7-segment LED display,
common-cathode
LITE-ON LSHD-7503
SPI is a trademark of Motorola, Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX3421 Evaluation Kit-1
Component List (continued)
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
MAX4793EUK+ 300mA current-limit
switch (SOT23-5)
Top mark "AEAG"
—
1
MAX3421EVKIT-1+ PCB
U3
1
2
0
USB high-speed A-to-B cables, 5ft
(1.5m)
Assmann Electronic AU-Y1002A-R
—
1
12MHz ceramic resonators
Murata CSTCE12M0G15
Y1, Y2
Y3, Y4
36-pin, dual-row vertical header, with
certain pins removed
—
—
1
1
Not installed, 12MHz crystal; 18pF
load (HCM49 SMD case)
Citizen HCM49-12.000MABJ-UT
Red power wire
Component Suppliers
SUPPLIER
PHONE
WEBSITE
Murata Mfg. Co., Ltd.
Panasonic Corp.
TDK Corp.
770-436-1300
800-344-2112
847-803-6100
www.murata.com
www.panasonic.com
www.component.tdk.com
Note: Indicate that you are using the MAX3421E and MAX3420E when contacting these component suppliers.
vluates:1/MAX3420E
2
_______________________________________________________________________________________
MAX3421 Evaluation Kit-1
vluates:1/MAX3420E
USB TYPE B
J5
USB TYPE B
J2
USB TYPE A
J1
V
BUS
ON
MAX3421E
MAX4793
MAX3420E
USB HOST AND
PERIPHERAL
CONTROLLER
(U1)
CURRENT-LIMITED
SWITCH (U3)
USB PERIPHERAL
CONTROLLER
(U2)
FLAG
SPI, POWER
SPI, POWER
J3
J4
5V IN
Figure 1. Block Diagram
300mA overcurrent condition on GP-IN pin, (GPIN0).
Refer to the MAX4793 data sheet for more information.
Detailed Description
of Hardware
Buttons and lights are connected to both the
MAX3420E and MAX3421E controllers. U1 drives a
7-segment readout and connects to four pushbuttons
(PB1–PB4). U2 drives four LEDS and connects to push-
buttons PB5–PB8.
The MAX3421 EV kit-1 has three USB connectors
(Figure 1). The MAX3421E is wired to USB connectors
J1 and J2. Plug a cable into USB Type A connector J1
when using the MAX3421E as a host. Plug a cable into
USB Type B connector J2 when using the MAX3421E
as a peripheral. Do not use J1 and J2 at the same
time. Connectors J1 and J2 have their D+ and D- pins
wired together, and are intended to be connected only
one at a time. USB peripheral controller MAX3420E is
wired to USB Type B connector J5.
The MAX3420E and MAX3421E connect to two sepa-
rate SPI ports (see Table 1). This allows host and
peripheral applications to run concurrently in the same
code, when implemented on a dual-SPI microcontroller
(such as the ARM LPC2318 used on the Keil MCB2130
board). This provides an ideal USB training and debug-
ging system. The host can dispatch USB requests to
the peripheral, the peripheral can respond, and the
host can evaluate the results—all in the same C code.
When the MAX3421E (U1) operates as a host, the EV
kit must supply V
power to USB Type A connector
BUS
J1. This power must in turn be supplied to the EV kit
through power connector J3, which is located in the
middle of the board. When mated with a board such as
the Keil MCB2130, a “flying lead” can be attached
between J3 and the Keil board’s 5V IN test pad.
Alternatively, a standard 5VDC lab supply can be used.
Stand-Alone Operation
Although the MAX3421 EV kit-1 is designed to plug into
a Keil MCB2130 board, it also functions as a stand-
alone board that can be wired into any customer sys-
tem with an SPI interface. Table 1 shows the J4 pins
that correspond to the MAX3420E and MAX3421E
interfaces.
The MAX4793 (U3) controls and current-limits the V
BUS
voltage. U1 can turn V
power on and off using one
BUS
of its GP-OUT pins (GPOUT7), and can detect a
_______________________________________________________________________________________
3
MAX3421 Evaluation Kit-1
Table 1. J4 Interface to the MAX3420E and MAX3421E
J4 PIN
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
MAX3420E
MAX3421E
—
J4 PIN
1
MAX3420E
3.3V (in)
MAX3421E
3.3V (in)
—
—
—
2
—
—
—
—
3
—
—
—
INT (out)
—
4
—
—
SCK (in)
—
5
MISO (out)
6
SCK (in)
—
—
—
—
—
INT (out)
—
—
7
8
MISO (out)
—
—
SS (in)
SCK (in)
—
—
9
—
—
10
11
12
13
14
15
16
17
18
MOSI (in)
GPX (out)
SS (in)
—
—
—
MISO (out)
GPX (out)
MOSI (in)
—
—
—
—
—
—
—
—
—
—
5V (in)
5V (in)
GND
—
—
—
RES (in)
—
—
—
GND
GND
GND
—
RES (in)
enough current to power any USB device plugged
into J1. The current-limiting switch (a MAX4793) lim-
User Notes:
1) The MAX3420E connects to USB Type B connector
J5, while the MAX3421E connects both to USB Type
A connector J1 and to USB Type B connector J2.
The MAX3421E, therefore, can be connected as a
host (J1) or a peripheral (J2).
its the V
current to 300mA.
BUS
5) Keep leads to the target system short (under 6in).
Long leads and insufficient grounds can lead to sig-
nal ringing and erratic operation.
vluates:1/MAX3420E
2) The user system must supply 3.3V on J4 pins 1-2 to
power the board. The 3.3V supply should be capa-
ble of providing 100mA.
6) When using the MAX3421E as a host, the user
program must set the MAX3421E GPO7 pin high
to turn on the V
switch (U3) that supplies 5V to
BUS
the USB Type A connector J1. Note that the
MAX3421E output port also drives the 7-segment
readout using GPO[6:0]. Therefore, the code that
updates the 7-segment readout must preserve the
3) The RES pins connect directly to the MAX3420E/
MAX3421E reset pins. It must be driven high for the
chip to operate.
4) When operating the MAX3421E as a host controller,
the user system must provide 5V power on J4 pins
33-34, or on J3 pin 3. This voltage connects to the
bit 7 setting, and the code that turns V
on and
BUS
off must preserve the bits [6:0] settings. This is easi-
ly accomplished by first reading the states of the
output bits, changing only the needed bits, then
writing them back.
V
pin of USB Type A connector J1 through a
BUS
current-limiting switch. The user system must supply
4
_______________________________________________________________________________________
MAX3421 Evaluation Kit-1
vluates:1/MAX3420E
Figure 2a. MAX3421 EV Kit-1 Schematic
_______________________________________________________________________________________
5
MAX3421 Evaluation Kit-1
PB5
1
2
3
4
5
PB6
1
2
3
4
5
PB7
1
2
3
4
C13
18pF
Y2
5
3
1
Y4
2*
2*
X2
X1
PB8
2
GND
1
2
3
4
5
C14
18pF
32
31
30
29
28
N.C.
27
XO
26
XI
25
R6
470Ω
2*
GPIN3
GPIN2
GPIN1
GPIN0
N.C.
VBCOMP
D1
D2
1
2
3
4
5
6
7
8
24
J5-5V
GPOUT0
GPOUT1
C9
2.2μF
3.3V
R7
470Ω
23
22
21
20
19
18
17
V
V
CC
CC
J5
C7
1μF
C8
2.2μF
3.3V
1
3
2
4
VBUS
V
V
L
L
6
5
C10
1μF
D+ SHIELD
D- SHIELD
GND
R3
33Ω
D+
D-
U2
R4
33Ω
CON_USB-B
MAX3420E
GND
GND
GND
GND
INT
vluates:1/MAX3420E
R8
470Ω
3.3V
D3
D4
R18
2.2kΩ
GPOUT2
GPOUT3
R9
470Ω
16_PINT
N.C.
9
RES
10
SCLK
11
SS
12
MISO
13
MOSI
14
GPX
15
N.C.
16
22_PGPX
06_PMOSI
05_PMISO
07_PSSN
04_PSCK
12_PRESN
2* Y2 TAKES PLACE OF Y4, C13 & C14
Figure 2b. MAX3421 EV Kit-1 Schematic
6
_______________________________________________________________________________________
MAX3421 Evaluation Kit-1
vluates:1/MAX3420E
Figure 3. MAX3421 EV Kit-1 Component Placement Guide—Component Side
_______________________________________________________________________________________
7
MAX3421 Evaluation Kit-1
vluates:1/MAX3420E
Figure 4. MAX3421 EV Kit-1 PCB Layout—Component Side
8
_______________________________________________________________________________________
MAX3421 Evaluation Kit-1
vluates:1/MAX3420E
Figure 5. MAX3421 EV Kit-1 PCB Layout—Solder Side
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9
© 2006 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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