ES521 [WINBOND]

Winbond ES521 Evaluation System User Guide; 华邦ES521评估系统用户指南


型号：	ES521
厂家：	WINBOND
描述：	Winbond ES521 Evaluation System User Guide 华邦ES521评估系统用户指南
文件：	总15页 (文件大小：617K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Preliminary

Winbond ES521

Evaluation System

User Guide

Preliminary

INTRODUCTION:........................................................................................................... 3

CONTENT OF THE ES521 EVALUATION KIT: ....................................................... 3

APPLICATION SOFTWARE AT A GLANCE:........................................................... 4

INTRODUCTION TO SYSTEM SETUP ...................................................................... 5

CONFIGURATION REGISTERS.................................................................................. 7

STORING CUSTOM CONFIGURATIONS ................................................................. 8

ANALOG PLAY AND RECORD ................................................................................... 8

THE STATUS REGISTER .............................................................................................. 8

DIGITAL READ AND WRITE ...................................................................................... 9

READING AND WRITING STRINGS .................................................................................... 9

READING RAW DATA ....................................................................................................... 9

ON BOARD CLOCK GENERATION ......................................................................... 11

RUNNING ONE OR TWO DEVICES ......................................................................... 11

SETTING UP THE BOARD.......................................................................................... 12

CLOCK CONFIGURATION JUMPER (J9)............................................................................ 12

CODEC JUMPER (J1)..................................................................................................... 12

I²C SWITCHES (SDA, SCL)........................................................................................... 12

CODEC SWITCHES (SCK, WS, MCLK, SDI, SDIO)................................................... 12

RECOMMENDED POWER SUPPLY..................................................................................... 12

ES521 SCHEMATICS .................................................................................................... 13

CONNECTORS AND CLOCK GENERATION......................................................................... 13

MAIN 5216..................................................................................................................... 14

SECOND 5216................................................................................................................. 15

Preliminary

Introduction:

The ES521 evaluation system allows testing of all features of the chip and visually shows the

signal flow through the chip.

Writing to three 16-bit configuration registers sets up the signal flow. An active path is highlighted

in blue while the gray arrows show possible but not currently active paths.

The main application window allows playback and record of analog audio as well as setting up

the configuration registers.

There are three ways to set the configuration registers,

Change the controls on the main window until the desired signal flow is highlighted in

blue.

Type in values in the configuration register boxes in the top left window, the signal flow

will be updated to show the current signal path.

Select a path from the Path menu.

The various play and record buttons allow playback and record either from a supplied address or

the current location of the address pointer. Pressing the ‘Read Status’ button retrieves the

address pointer.

The program also supports reading and writing digital data by selecting the ‘Digital’ menu in the

menu bar.

Content of the ES521 evaluation kit:

The evaluation system package contains an Evaluation Board (batteries included) and a CD

ROM with the following items:

User’s Guide

Self installing application software

Data sheets

Preliminary

Application software at a glance:

Figure 1 –Software Overview

Type in configuration

settings in these boxes

Current configuration register

settings in hex numbers

binary representation of

configuration registers

select main or

secondary

device

CODEC setup

Status display

current address

pointer

PCM / I²S

clock / sync

Preliminary

Introduction to system setup

To quickly get familiar with the system, follow this tutorial that will explain the procedure of setting

up a feed through path from the microphone to the speaker of the main 5216. The main 5216

uses the analog audio connectors on the left side of the board.

Start the ES521 Application from the start menu. The default path is all configuration

registers set to 0.

Set the Aux Gain control to ‘OFF’

Set the SUM1AMP control to ‘OFF’

Set the SUM1MUX to ‘OFF’

Set the SUM2 control to ‘OFF’

Set the CODEC MUX to ‘NONE’

Set the CODEC A/D control to ‘OFF’, this prevents noise from the CODEC.

Set the CODEC D/A control to ‘OFF’, also for preventing noise.

Set the Volume MUX control to ‘INP MUX’

Set the Output Select control to ‘8 Ohm’

Click ‘Write Config’, this updates the main 5216 with this setup.

The display should now show a single blue path from the microphone to the output. If a speaker

is connected to the speaker output, any sound coming into the microphone will be played back

over the speaker.

The top left corner of the application windows shows the configuration registers, they should look

like in the following picture.

Figure 2 – Configuration Register settings

If other values are displayed, restart the application and follow the steps again.

The binary representation of the Configuration Registers at the top of the application window

shows the register content in binary form with bit names used in the data sheet.

There are two other ways to get to the same setup:

Exit and restart the application to get back to the initial state. Go into the Paths menu and

select ‘MIC to Speaker’. This should display an identical setup, press the ‘Write Config’

button to write the data to the chip.

Preliminary

Type the following values in the three text boxes in the top left corner:

0464

C7E0

0003

Press the ‘Load’ button, This will also set up the same configuration. Press the ‘Write

Config’ button to write the data to the chip.

Preliminary

Configuration Registers

The ISD5216 is a very versatile chip where the analog audio signal can be routed and processed

in a variety of ways. Writing to three configuration registers sets up the internal path.

To aid the setup of the signal paths, the available paths are displayed graphically and the

currently selected path highlighted in blue while the available but inactive paths are shown in

gray.

An arrow is only highlighted if there is a signal at the input end, and the signal can be accepted at

the other end. The easiest way to setup a path is from the signal input towards the output.

There are a number of ways to set up the path of analog audio, Note: The configuration

registers are not actually written to the chip until the ‘Write Config’ button is pressed:

1. The controls on the main application window can be used to setup any path through the

system. Set all controls so that the desired path is highlighted and click ‘Write Config’ to

write the configuration to the chip. An arrow is only highlighted if there is a connection at

both ends of the arrow. To setup a configuration, start from the input and move towards

the outputs. For example, the paths to the CODEC will not be highlighted unless the A/D

converter is switched on.

2. A value can be typed directly into the configuration register boxes. Pressing the load

button will update the graphics on the main display. The configuration register setup

should be written in hex numbers.

3. The ‘Paths’ menu contains stored paths that will setup a given configuration. It is possible

to add and remove paths from this menu to save commonly used paths.

The currently selected configuration is displayed in three ways:

Graphically by highlighted arrows.

A hexadecimal number labeled ‘CFG0’, ‘CFG1 and ‘CFG2’

A binary number with the bit labels used in the datasheet

The buttons used for configuration register setup is:

Load - Update the current configuration with the settings in the textboxes in the top left

corner

Write Config – Write the settings currently selected to the chip.

Chip Select – Choose whether to use the main or secondary board

Preliminary

Storing Custom Configurations

The application comes pre-configured with a few useful paths that can be found in the Paths

menu.

To add new paths, simply set up the desired configuration and select ‘Add Path’ from the Paths

menu, a window will appear asking for a name for this configuration. Fill in a descriptive name

(max 32 characters) and click OK to store this path. The paths are permanently stored on the

computer. A maximum of 32 paths can be stored.

To remove a stored path, select the path from the Path menu and click ‘Remove Path’ in the Path

menu. The Path will be permanently removed.

Analog Play and Record

The ES521 Demo System allows full playback and record capabilities from the main application

window. The 5216 supports two types of addressing:

Use current address – Recording or Playback starts from the position of the current address

pointer, no address is sent as part of the command. The address pointer can be retrieved from by

pressing the ‘Read Status’ button which displays the address bytes as two hexadecimal numbers

(high and low address byte)

Supply address – Record and Playback can be setup by sending an address with the Play or

Record command. See the 5216 datasheet for addressing details.

Play – Play from the current address

Play from address – Play from the address given in the box below the button.

Record – Record from the current address.

Record from address – Record from the address given in the box below the button.

The Status Register

The Status register gives an indication of what the chip is currently doing, and the current address

pointer.

Select which chip to use (main or secondary 5216) and click the ‘Read Status’ button near the

bottom of the screen to update the status. It gives the following information:

Table 1 – Status Register bits

EOM

OVF

RDY

Indicates that an End Of Message interrupt has occurred

Indicates that Recording or Playback reached the end of the array

When set, the chip is ready to accept new commands.

Set when the chip is powered down

PRB

Address

Set when chip is in playback mode, cleared when in record mode

The current address pointer to the memory array

Preliminary

Digital Read and Write

The ISD5216 chip allows writing of digital data as well as analog. Any address can be used for

either analog or digital storage, but not both at the same time.

The demo application shows the capability to read and write text into memory and also read the

raw data out of any memory cell.

The Address box at the top of the window is shared for all operations, type in a hex number

between 0 and FFFF to specify a 64 bit block. If no address is specified, the application is going

to use the current address pointer. For details about addressing, please refer to the datasheet.

Reading and Writing Strings

Erase: Pressing this button will erase one page of data (2048 bits), it is not possible to erase a

smaller number of bits.

Read Data: Reads a string of characters previously stored with the Write Data button.

Write Data: Writes a string to non-volatile digital memory (max 256 characters)

Reading Raw Data

The program allows reading of the raw data from any position in the array. Use the address box

at the top of the window or leave it blank for using the current address.

Type the number of 64 bit words to read (a decimal number) and press Read Raw Data to

retrieve the data.

Preliminary

Figure 3 – Digital Read and Write Dialog

Address used for

All operations

Raw data in hexadecimal notation

Preliminary

On Board Clock Generation

The ES521 Evaluation System has a pair of jumper selectable oscillators. Please refer to the

datasheet for details of operating modes.

There are three clocks supplied to the 5216s:

MCLK – The main clock straight from the oscillator.

SCK – Bit clock used for I²S or PCM data.

WS – Word sync / Frame sync used by I²S or PCM data.

PCM mode uses the 13.824MHz oscillator to generate an 8kHz signal commonly used in telecom

applications. The clock jumper(J9) must be set to the 13.824MHz setting and CODEC jumper (J1)

must be set to PCM. The clock generator allows short and long frame sync to be selected.

Note: The frame sync setting is not part of the configuration registers and therefore applies to

both devices. It is not stored in the paths setup.

I²S mode uses a 20.48MHz oscillator to generate the I²S bit clock and there is only one word sync

length setting. The CODEC jumper(J9) must be in the I²S position

Running One Or Two Devices

The Demo Board is set up to allow running either one of the two devices from the PC parallel

port, and the central bank of DIP switches allows decoupling of the I²C and CODEC buses so that

the devices can be controlled independently.

The headers bring out the full I²C and CODEC buses as well as the RAC and INT pin of each

device. In the normal mode with the DIP switches on, the devices are connected together

allowing the CODECs of both devices to communicate with each other, and the PC to control the

I²C bus of both devices. Disabling the CODEC DIP switches allows for example another CODEC

chip to be connected.

If the external CODEC is connected to the main 5216, the external CODEC will be in slave mode,

if connected to the secondary 5216, the clocks from the clock generator on the Demo Board can

be disconnected and the secondary 5216 run in slave mode.

Preliminary

Setting up the board

The board has the following connectors and possible setups:

Clock Configuration Jumper (J9)

The clock jumper is only needed for operations involving the CODEC, the jumper allows selection

between the 13.824MHz and the 20.48MHz oscillator on the board. 13.824MHz is used for 8kHz

applications such as A-law or m-law CODEC operation. 20.48MHz is divided down to 44.1kHz to

interface using I²S.

Using long or short frame sync in PCM mode is software selectable from the main application

window.

CODEC Jumper (J1)

In I²S mode, the two SDIO lines are connected together, while in PCM mode the SDIO is

connected to SDI and vice versa.

I²C Switches (SDA, SCL)

When the DIP switches for SDA and SCL are on, both 5216s are controlled using the I²C bus

from the PC parallel port. Switching the I²C interface off allows control of the second 5216 from

the J10 header. Note that pull-ups must be provided by the external bus driver in that case.

CODEC Switches (SCK, WS, MCLK, SDI, SDIO)

The 5216 CODECs can be connected together or run separately depending on the switch setup.

The switches allow the clocks generated on the main board to be connected to the secondary

board as well, and the CODEC data lines allow digital communication between the devices.

The clocks are always connected to the main board, but switching the CODEC off allows the

secondary board to be controlled by another device using the J10 header.

Recommended power supply

The board can be driven by a 9V battery or a 5 to 9V DC supply with positive polarity rated at 500

Preliminary

ES521 Schematics

Connectors and clock generation

SPDT SWITCH

SW2

VCCD

NJU7201L30

Cell

VSS (GND)

3V OUT

C12

SN74LV125AD

U3A

9V BATT HOLDER

_J7+9VDC

C13

0.1uf

RAC_1

RAC_2

0.1uf

U3B

SN74LV125AD

VCCD

PJ_202A_POWER_JACK

DC POWER JACK w SW

SCL_1

C15

1uf

C14

100uf @ 20V

USE FREE

TO SHORT(.156)

RB3

RB2

RB1

RB0

U3C

U3D

VCCA

R16

3.6K

NJU7201L30

VSS (GND)

SN74LV125AD

3V OUT

HEADER2

SDA_1

C16

0.1uf

LED

Single point

connection

close to J1

TP1 TP2

TP3 TP4

TP5 TP6

TP7 TP8

AGND DGND AGND DGND

C17

1uf

CONNECTOR DB25

1NC

OUT

VCCD

VSS

VCC

C18

0.01uf

C19

0.1uf

B500CT3E 20.480

MCLK_1

VCCD

HEADER3

1NC

OUT

VCC

470

VCCD

RA2

RA3

RA4

RA1

RA0

OSC1

SCK_1

VSS

WS_1

MCLK_1

MCLR OSC2

C20

0.01uf

C21

0.1uf

B500CT3E 13.824

VSS

RB0

RB1

RB2

RB3

VDD

RB7

RB6

RB5

RB4

RB0

RB1

RB2

RB3

C22

C23

0.1uf

0.01uf

PIC16F84A-20P

Preliminary

Main 5216

SW1

SDIO_1

SDIO_2

SDA_2

SDA_1

SCL_1

SCL_2

SCL_1

SCK_1

WS_1

SCK_2

SCK_1

WS_2

WS_1

MCLK_2

SDI_2

SDIO_2

MCLK_1

HEADER 3

MCLK_1

SDIO_1

SDI_1

RAC_1

SW DIP-7

INT_1

VCCD

VCCA

10K

HEADER 10

0.01uf

0.1uf

47uf

0.1uf

0.01uf

VCCD

ISD5216

MJ_3536

SCL_1

SDA_1

SCL

SDA

SDI

SDI_1

SDIO

SDIO_1

0.1uf

SCK

WS_1

SCK_1

RAC_1

RAC

INT

INT_1

N/C

MJ_3536

DUT 1

MCLK_1

MCLK

AUXOUT

0.1uf

MJ_3536

AUXIN

SP+

SP-

0.1uf

MIC+

MIC-

C10

0.1uf

ACAP

C11

4.7uf

MICROPHONE

MICBS

1.5K

ACAP_AGND

1.5K

Preliminary

Second 5216

J10

SDA_2

SCL_2

SCK_2

WS_2

MCLK_2

SDI_2

VCCD

VCCA

SDIO_2

RAC_2

INT_2

R10

10K

R11

C24

C25

C26

47uf

C27

47uf

C28

C29

HEADER 10

0.01uf

0.1uf

0.01uf

10K

VCCD

ISD5216

J11

C30

SCL_2

SDA_2

SCL

SDA

SDI

SDIO

SDI_2

SDIO_2

WS_2

0.1uf

SCK

SCK_2

R12

MJ_3536

RAC_2

INT_2

RAC

INT

J12

C31

N/C

DUT 2

0.1uf

MCLK_2

MCLK

AUXIN

AUXOUT

R13

J13

MJ_3536

SP+

SP-

C32

0.1uf

MIC+

MIC-

C33

0.1uf

ACAP

MJ_3536

R14

1.5K

MICROPHONE

MICBS

C34

4.7uF

R15

1.5K

ACAP_AGND

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