ISD5102 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

ISD5102

SINGLE-CHIP 1 TO 16 MINUTES DURATION VOICE RECORD/PLAYBACK DEVICES WITH DIGITAL STORAGE CAPABILITY

Winbond 

ISD5100 – SERIES

7.3.2. I2C Control Registers

The ISD5100 Series are controlled by loading commands to, or, reading from, the internal command,

configuration and address registers. The Command byte sent is used to start and stop recording, write

or read digital data and perform other functions necessary for the operation of the device.

Command Byte

Control of the ISD5100 Series are implemented through an 8-bit command byte, sent after the 7-bit

device address and the 1-bit Read/Write selection bit. The 8 bits are:

Global power up bit

DAB bit: determines whether device is performing an analog or digital function

3 function bits: these determine which function the device is to perform in conjunction

with the DAB bit.

3 register address bits: these determine if and when data is to be loaded to a register

Power Up

Bit

C7

C6

C5 C4 C3 C2 C1 C0

PU DAB FN2 FN1 FN0 RG2 RG1 RG0

Function Bits

Register Bits

Function Bits

The command byte function bits are

detailed in the table to the right. C6, the

DAB bit, determines whether the

device is performing an analog or

digital function. The other bits are

decoded to produce the individual

commands. Not all decode

combinations are currently used, and

are reserved for future use. Out of 16

possible codes, the ISD5100 Series

uses 7 for normal operation. The other

9 are undefined

C6

DAB

0

0

0

0

1

1

1

Function Bits

C5 C4

FN2 FN1

0

0

1

0

0

1

1

1

1

0

0

0

0

1

Function

C3

FN0

0 STOP (or do nothing)

1 Analog Play

0 Analog Record

1 Analog MC

0 Digital Read

1 Digital Write

0 Erase (row)

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