msm7564-01 Oki Semiconductor, msm7564-01 Datasheet - Page 13

• Manufacturer Part Number: msm7564-01
• Description: A Single Chip 14.4 Kbps Data & Fax Modem
• Manufacturer: Oki Semiconductor

Control register
The modem contains twenty 8-bit registers for control and signal detection monitoring. These
registers are assigned by the address (ADA7-0 or AOD7-0) as shown in the following table.
• Table of control register
¡ Semiconductor
1F W
1E W
1D R
1C R
0F W
0E R
0D R
0C R
0B W
0A W
09 W
08 W
07 W
06 W
05 W
04 W
REG (H)
V17, V21ch2
Bell103ORG
Bell103ANS
V22ORG
V21ORG
V22ANS
V21ANS
VOICE
VOICE
VOICE
VOICE
V32
V29
V27
V32
V22
DON'T CARE
DON'T CARE DON'T CARE DON'T CARE DON'T CARE
DON'T CARE
SB1DEN
write "0"
write "0"
write "0"
AGCRST
ILDCNT
1650
2225
1650
2225
1270
1650
1650
1650
1100
980
980
EB1
D7
DETMODE
LALTST
TXCLK
DSPRST
BRKDET
write "0"
write "0"
DSPST
RATES
AGCH
NEGO
1300
1100
1100
1300
1300
1300
1300
1300
1300
1300
1300
RDZ
D6
PBANSEL
VSMODE
write "0"
write "0"
CPGDET
ERR11
PBDET
STUP
AQID
TRN
SDZ
GTS
D5
DON'T CARE
PBTONE NO
MODEMSET
ERRCNT
ANSDET
write "0"
write "0"
ECTRN
PN511
SB124
AUTO
TIMC
SDA
TRN
VEN
GTE
D4
TXLEV
2250USB1
2250USB1
1270USB1
2250USB1
2250USB1
2250USB1
2250USB1
2250USB1
USB124D
RAEQL
RAEQL
EQLST
SB112
STRN
SB11
1750
1750
1750
TANI
SFIL
FCD
D3
SS
WSIZE
3000 AC
2700 S1
1500 S1
3000 AC
3000 AC
3000 AC
3000 AC
3000 AC
3000 AC
SB11DET
USB112D
USB124
PBANS
JHOLD
SAEQL
SAEQL
SLEEP
XCHG
BRTS
2900
2600
SQD
PN1
D2
write "0"
1800 AA
1800 AA
1800 AA
1800 AA
1800 AA
1800 AA
1800 AA
EXTEND
PN1DET
2400 S1
1200 S1
PTONE2
SB124D
USB112
ORGANS
ORGANS
SOFTRST
EHOLD
AACC
1700
1800
DCD
PN0
EED
EPT
D1
MSM7564-01
CDLEV
2100 S1
PN0DET
SB112D
write "0"
PTONE1
RAMRDWR
V32DATA
600 AC
600 AC
600 AC
600 AC
600 AC
600 AC
600 AC
LOOP2
RATED
900 S1
ASYN
ACCA
TAPH
1000
CTS
RTS
500
D0
S1
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