psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 238

• Manufacturer Part Number: psb21381
• Description: Siemens Codec With S/t Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
7.4.6
Value after reset: 00
ATCR
MIC
CMAS
0: In controlled monitoring mode (GCR.CME = ’1’)
1: In controlled monitoring mode (GCR.CME = ’1’)
AIMX
the lower ALS setting is -9.5dB
the lower ALS setting is -21.5dB
7
AFE Transmit Configuration Register (ATCR)
Bit 7 6
0
0
0
0
0
0
0
0
1
1
Bit 1 0
0
0
1
1
... Microphone Amplifier (AMI) Control
... Controlled Monitoring Attenuation Select
... Analog Input Multiplexer
0
0
0
0
1
1
1
1
0
1
0
1
0
1
H
5
0
0
1
1
0
0
1
1
0
1
Selected Input
AMI is connected to the pins MIP1/MIN1 (differential input)
AMI is connected to the pins MIP2/MIN2 (differential input)
AMI is connected to the pin AXI (single-ended input)
not used
MIC
4
0
1
0
1
0
1
0
1
0
1
Selected Mode
AMI and PREFI is in power-down mode
0 dB
6 dB
12 dB
18 dB
24 dB
30 dB
36 dB
42 dB
bypass mode, reserved for internal tests
228
0
amplification
amplification
amplification
amplification
amplification
amplification
amplification
amplification
CMAS
Detailed Register Description
AIMX
0
PSB 21381/2
PSB 21383/4
RD/WR (65
2001-03-12
H
)