ml7029b Oki Semiconductor, ml7029b Datasheet - Page 17

• Manufacturer Part Number: ml7029b
• Description: Multifunction Adpcm Codec Ml7029bmultifunction Adpcm Codec
• Manufacturer: Oki Semiconductor

FUNCTIONAL DESCRIPTION
Control Registers
(1) CR0 (Basic operating mode setting)
Note: Initial Value: Reset state by PDN (*: Don’t care)
B7, B6, B4 to B0: Not used (These pins are used to test the device. They should be set to “0” during normal
B5:
(2) CR1 (ADPCM operating mode setting)
B7, B6:
B5:
B4:
B3:
B2:
B1:
B0:
* The reset width should be 1/f
1 Semiconductor
The transmit and receive sides cannnot be reset separately.
They must be reset at the same time.
Initial Value
Initial Value
CR0
CR1
ADPCM of transmit reset (specified by G.726); 1/Reset*
ADPCM of receive reset (specified by G.726);
ADPCM transmit data mute;
ADPCM receive data mute;
Not used (This pin is used to test the device. It should be set to “0” during normal operation.
Receive side PAD;
It is Test Resister for LSI. It should be set to “0” during normal operation.
TEST0
operation.)
B7
B7
Power-down (entire system);
0 Red with the inverted external power-down signals.
When using this data, set the RDN pin to “1”.
—
0
*
TEST1
sample
B6
B6
0
—
*
s or more.
TX RESET RX RESET TX MUTE RX MUTE
PDN ALL
B5
B5
0
0
0/Power-on, 1/Power-down
1/Mute
1/ Reset*
1/Mute
1/inserted in the receive side voice path, 12 dB loss
0/no PAD
B4
B4
0
—
*
B3
B3
—
0
*
B2
B2
0
—
*
B1
—
B1
—
*
*
ML7029B
RX PAD
B0
B0
0
—
*
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