ISD5008 Datasheet, PDF(17/47 Page) List of Unclassifed Manufacturers – SINGLE CHIP VOICE RECORD PLAYBACK DEVICE 4-, 5-, 6-, AND 8- MINUTE DURATIONS

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ISD5008 Datasheet, PDF (17/47 Pages) List of Unclassifed Manufacturers – SINGLE CHIP VOICE RECORD PLAYBACK DEVICE 4-, 5-, 6-, AND 8- MINUTE DURATIONS

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ISD5008 Product

Instruction

Table 6: Opcode Summary

Opcode <8 bits>(1)

Address <16 bits>

Operational Summary

POWERUP

0110 0000

(2)

LOADCFG0 01X0 0010 <D15âD0>

LOADCFG1 01X0 0100 <D15âD0>

SETPLAY

1110 0000 <A15âA0>

PLAY

1111 0000

SETREC

1010 0000 <A15âA0>

REC

1011 0000

1111 1000

STOP

STOPWRDN

RINT

0111 0000

0101 0000

0111 0000

Power-Up: See âPower-Up Sequenceâ

Loads a 16-bit value into Configuration Register 0

Loads a 16-bit value into Configuration Register 1

Initiates Playback from address <A15âA0>

Playback from current address (until EOM or OVF)

Initiates Record at address <A15âA0>

Records from current address until OVF is reached

Performs a Message Cue. Proceeds to the end of the current

message (EOM) or enters OVF condition if it reaches the end of

the array.

Stops current operation

Stops current operation and enters stand-by (power-down) mode.

Read interrupt status bits: OVF and EOM.

1. X = Donât Care.

2. Changes in CFG0 are not recognized until CFG1 is loaded. The changes will occur at the rising edge of SS during

the cycle that CFG1 is loaded.

4.2 POWER-UP SEQUENCE

The ISD5008 will be ready for an operation after

TPUD (25 ms approximately for 8 kHz sample rate).

The user needs to wait TPUD before issuing an opera-

tional command. For example, to play from ad-

dress 00 the following programing cycle should

be used.

Playback Mode

1. Send POWERUP command.

2. Wait TPUD (power-up delay).

3. Load CFG0 and CFG1 for desired opera-

tion.

4. Send SETPLAY command with address 00.

The device will start playback at address 00 and it

will generate an interrupt when an EOM is

reached. It will then stop playback.

Record Mode

1. Send POWERUP command.

2. Wait TPUD (power-up delay).

3. Load CFG0 and CFG1 for desired opera-

tion.

4. Send SETREC command with address 00.

The device will start recording at address 00 and it

will generate an interrupt when an overflow is

reached (end of memory array) or when it has re-

ceived a STOP command. It will then stop record-

ing.

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