MSM7570L-01 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

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MSM7570L-01

Multi-Function ADPCM CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7570L-01/02

FUNCTIONAL DESCRIPTION

Control Registers

(1) CR0 (Basic operating mode)

B7

B6

B5

B4

B3

B2

B1

B0

CR0

A/m SEL MCK SEL PDN ALL

—

—

—

PDN

—

SAO/AOUT

Initial Value (Note)

0

0

0

0

0

0

0

0

Note: Initial Value: Reset state by PDN/RESET

B7 ...PCM Companding law select;

0/µ-law, 1/A-law

B6 ...Master clock frequency select; 0/12.288 MHz, 1/19.200 MHz

B5 ...Power down (entire system);

0/Power on, 1/Power down

When using this data for power down control, set pin PDN/RESET at “1”level.

The control registers are not reset by this signal.

B2 ...Not used

B1 ...Not used

B0 ...Power Down for Sound output amps: (SAO+, SAO–), or Receiver output amp (AOUT+,

AOUT–, VFRO );

If this data is set to digital “1”, either a pair of sound amplifiers or a pair of reciver

amplifiers enters the power down state depending on the set data on CR4-B5.

If this data is set to digital "0", sound amplifiers and receiver amplifiers are in the power-

on state.

B4, B3 ... Not used (These pins are used to test the device. They should be set to "0" during normal

operation.)

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