UPD9611 Datasheet, PDF (10/28 Pages) NEC – FOUR-CHANNEL PCM CODEC

• A/µ-law, power down control
D7 D6 D5 D4 D3 D2 D1 D0
1
0
– A/µ PD1 PD2 PD3 PD4
0/1 Power down/power up for channel 4^{Note 1}
0/1 Power down/power up for channel 3^{Note 1}
0/1 Power down/power up for channel 2^{Note 1}
0/1 Power down/power up for channel 1^{Note 1}
0/1 Setting of A-law/µ-law^{Note 2}
– Don’t care
0 Identification code
1 Identification code
Notes 1. Default setting is power down mode.
2. Default setting is A-law mode.
• Transmit/receive gain setting control (1st word)
D7 D6 D5 D4 D3 D2 D1 D0
0 1 – – ch1 ch2 ch3 ch4
0/1 Gain non-setting/setting for channel 4
0/1 Gain non-setting/setting for channel 3
0/1 Gain non-setting/setting for channel 2
0/1 Gain non-setting/setting for channel 1
– Don’t care
– Don’t care
1 Identification code
0 Identification code
Transmit/receive gain setting control (2nd word)
D7 D6 D5 D4 D3 D2 D1 D0
1
1 X/R
Setting data
0/1 Gain setting
0/1 Gain setting
0/1 Gain setting
0/1 Gain setting
0/1 Gain setting
0/1 Transmit/receive setting
1 Identification code
1 Identification code
µPD9611
10