APR6008 View Datasheet(PDF) - APLUS INTEGRATED CIRCUITS

Part Name

Description

Manufacturer

APR6008

Voice Recording & Playback Device 8 Minute Duration

APLUS INTEGRATED CIRCUITS 

APR6008

Table 1 Sequential Command Timing

Current Command

NOP

SID

PWRUP

Any Command

Any Command

Next command

Timing Symbol

Tnext1 5u SEC

Tnext2 5m SEC

STOP_PWDN

SET_REC

REC

SET_PLAY

PLAY

SET_FWD

FWD

DIG_WRITE

DIG_READ

DIG_ERASE

STOP

PWRUP

STOP, STOP_PWDN, SET_REC, REC,NOP

Tnext2 5m SEC

Within SAC Low Time

STOP, STOP_PWDN, SET_FWD, FWD, SET_PLAY,PLAY, NOP

SET_FWD, FWD, STOP, STOP_PWDN

Any Digital Command, STOP, STOP_PWDN

Note: For partial DIG_READ Tnext2 is measured from the extra clock low that follows the

rise of /CS, not from the rise of /CS

Any Command

Tnext3

8K sampling rate: 376m SEC

4K sampling rate: 752 m SEC

Tnext4 470m SEC

OpCode Command Description

Designers have access to a total of 14 OpCodes. These

OpCodes are listed in Table 2. The name of the Opcode

appears in the left hand column. The following two columns

represent the actual binary information contained in the 20 bit

data stream. Some commands have limits on which com-

mand can follow them. These limits are shown in the “Allow-

able Follow on Commands” column. The last column

summarizes each command.

Combinations of OpCodes can be used to accommodate

almost any memory management scheme.

Table 2 APR6008 Operational Codes

Instruction OpCode

Name

(5 bits)

Opcode Parameters (15bits)

NOP

SID

SET_FWD

[Op4 - Op0]

[00000]

[00001]

[00010]

[Address MSB - Address LSB]

[Address 14 - Address 0]

[Don’t Care]

[Don’t care]

Sector Address

[A14 - A0]

FWD

[00011]

[Don’t care]

PWRUP

[00100]

STOP

STOP_PWDN

[00110]

[00111]

[A14-A10]: all zeros

[A9-A2]: EXTCLK divider ratio

[A1-A0]: Sample Rate Frequency

[Don’t care]

[Don’t care]

Allowable Follow

on Commands

Summary

All Commands

All Commands

SET_FWD,

FWD, STOP,

STOP_PWDN

SET_FWD,

FWD, STOP,

STOP_PWDN

All Commands

All Commands

PWRUP

No Operation

Causes the silicon ID to be read.

Starts a fast forward operation from the

sector address specified.

Starts a fast forward operation from the

current sector address.

Resets the device to initial conditions.

Sets the sample frequency and divider

ratios.

Stops the current operation.

Stops the current operation. Causes the

device to enter power down mode.

Voice Recording & Playback Device

Revision 2.1

Page 5

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