psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 220

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
7.3
7.3.1
Value after reset: 00
GCR
SP
0: Speakerphone support disabled
1: Speakerphone support enabled
AGCX
0: Automatic gain control disabled
1: Automatic gain control enabled; only if speakerphone support is enabled (SP=1)
AGCR
0: Automatic gain control disabled
1: Automatic gain control enabled; only if speakerphone support is enabled (SP=1)
MGCR
0: AGCR starts regulation up and down after speech was detected two times
1: AGCR starts regulation down of the attenuation immediately, regulation up is done
CME
0: Controlled monitoring disabled
1: Controlled monitoring enabled. ALS attenuation is fixed to the value determined by
Note: If transmit speech is detected and LSC > -9.5 dB, the ALS programming is fixed
PU
0: The codec is in standby mode (power-down); all registers and the coefficient RAM
1: The codec is in normal operation mode (power-up)
after speech was detected two times
the ATCR.CMAS setting
contents are saved and all interface functions are available
to -9.5 dB
7
Codec Configuration Registers
General Configuration Register (GCR)
SP
... Speakerphone
... Automatic Gain Control Transmit
... Automatic Gain Control Receive
... Modified Gain Control Receive
... Controlled Monitoring Enable (GCR.SP = ’1’)
... Power Up
AGCX AGCR MGCR CME
H
210
PU ATT2R ATT1R
Detalled Register Description
0
RD/WR (60
PSB 21391
PSB 21393
2001-03-07
H
)