U4091BM Datasheet, PDF (8/29 Pages) TEMIC Semiconductors – Programmable Telephone Audio Processor

U4091BM
Table 1. Names and functions of the serial bus registers
Register
Group
No
Name
R0
Enables
R0B0
ENRING
R0B1
ERX
R0B2
ETX
R0B3
ENVM
R0B4
ENMIC
R0B5
ENSTBAL
R0B6
MUTE
R0B7
ENRLT
R1
Enables
R1B0
ENSACL
R1B1
ENSA
R1B2
ENSAO
R1B3
ENAM
R1B4
ENAGC
R1B5
free
R1B6
free
R1B7
FOFFC
R2
Matrix
R2B0
I1O1
R2B1
I1O2
R2B2
I1O3
R2B3
I1O4
R2B4
I1O5
R2B5
I2O1
R2B6
I2O2
R2B7
I2O3
R3
Matrix
R3B0
I2O4
R3B1
I2O5
R3B2
I3O1
R3B3
I3O2
R3B4
I3O3
R3B5
I3O4
R3B6
I3O5
R3B7
I4O1
R4
Matrix
R4B0
I4O2
R4B1
I4O3
R4B2
I4O4
R4B3
I4O5
R4B4
I5O1
R4B5
I5O2
R4B6
I5O3
R4B7
I5O4
R5
AGATX
R5B0
free
MICLIM
R5B1
AGATX0
R5B2
AGATX1
R5B3
AGATX2
R5B4
MICHF
R5B5
DBM5
R5B6
MIC0
R5B7
MIC1
Description
Enable ringer
Enable receive part
Enable transmit part
Enable VM–generator
Enable microphone
Enable sidetone
Muting earpiece amplifier
Enable POR low threshold
Enable anti-clipping for speaker amplifier
Enable speaker amplifier and AFS
Enable output stage speaker amplifier
Enable answering machine connections
Enable AGC for answering machine
Speed up offset canceller
Switch on MIC / LTX
Switch on MIC / SA
Switch on MIC / EPO
Switch on MIC / AMREC
Switch on MIC / AGCI
Switch on DTMF / LTX
Switch on DTMF / SA
Switch on DTMF / EPO
Switch on DTMF / AMREC
Switch on DTMF / AGCI
Switch on LRX / LTX
Switch on LRX / SA
Switch on LRX / EPO
Switch on LRX / AMREC
Switch on LRX / AGCI
Switch on AMPB / LTX
Switch on AMPB / SA
Switch on AMPB / EPO
Switch on AMPB / AMREC
Switch on AMPB / AGCI
Switch on AGCO / LTX
Switch on AGCO / SA
Switch on AGCO / EPO
Switch on AGCO / AMREC
Gain transmit AGA LSB
Gain transmit AGA
Gain transmit AGA MSB
Select RF-microphone input
Max. transmit level for anti-clipping
Gain microphone amplifier LSB
Gain microphone amplifier MSB
Status
1
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8 (29)
Rev. A1, 02-Jun-98
Target Specification