73K324L
CCITT V.22bis, V.22, V.21, V.23, Bell 212A
Single-Chip Modem
7
REGISTER ADDRESS TABLE
00=NORMAL
01=ANALOG LOOPBACK
LOOPBACK
11=LOCAL DIGITAL
LOOPBACK
CONTROL
REGISTER
0
000
TRANSMIT
MODE
2
TRANSMIT
MODE
1
TRANSMIT
ENABLE
ANSWER/
ORIGINATE
DATA BIT NUMBER
AD2 - AD0
REGISTER
ADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
TEST
MODE
0
TEST
MODE
1
RESET
CLK
CONTROL
BYPASS
SCRAMBLER/
ADD PH. EQ.
(V.23)
ENABLE
DETECT
INTERRUPT
TRANSMIT
PATTERN
0
TRANSMIT
PATTERN
1
001
CONTROL
REGISTER
1
CR1
SIGNAL
QUALITY
INDICATOR
CP
TONE
DETECT
SPECIAL
TONE
DETECT
CARRIER
DETECT
UNSCR.
MARKS
DETECT
RECEIVE
DATA
010
DETECT
REGISTER
DR
TRANSMIT
MODE
0
0000=PWR DOWN
0010=EXT SYNCH
0011=SLAVE SYNCH
0100=ASYCH 8 BITS/CHAR
0101=ASYCH 9 BITS/CHAR
0110=ASYCH 10 BITS/CHAR
0111=ASYCH 11 BITS/CHAR
1X00=FSK
0=DISABLE
1=ENABLE
TXA OUTPUT
0=ANSWER
in V.23
0=BC xmit
1=MC xmit
00=TX DATA
01=TX ALTERNATE
10=TX MARK
11=TX SPACE
0=OFF
1=ON
0=NORMAL
1=BYPASS
SCRAMBLER
0=XTAL
1=16 X DATA
RATE OUTPUT 10=REMOTE DIGITAL
AT CLK PIN IN
QAM/DPSK
MODE ONLY
0=NORMAL
1=RESET
OUTPUTS
RECEIVED
DATA STREAM
0=CONDITION NOT DETECTED
1=CONDITION DETECTED
CR0
MODULATION
OPTION
0=2400 BIT/S
0=1200 BIT/S
1=600 BIT/S
0=V.23
1=V.21
MODULATION
TYPE
1
MODULATION
TYPE
0
10=QAM
00=DPSK
01=FSK
RECEIVE
LEVEL
INDICATOR
S1 PATTERN
DETECT
0=SIGNAL
BELOW
THRESHOLD
1=ABOVE
THRESHOLD
0=GOOD
1=BAD
DTMF0/
GUARD/
CALLING/SCT
DTMF1/
OVERSPEED
DTMF2/
4 WIRE
FDX
DTMF3
TRANSMIT
DTMF
TRANSMIT
ANSWER
TONE
RXD
OUTPUT
CONTROL
011
CTONE
REGISTER
TR
RXD PIN
0=NORMAL
1=TRI-STATE
0=OFF
1=ON
1=TX DTMF
4 BIT CODE FOR 1 OF 16
DUAL TONE COMBINATIONS
TRANSMIT
GUARD/
CALLING/
GUARD:
ANSWER:
CALLING:
SCT:
0=OFF
1=ON
EQUALIZER
ENABLE
TRAIN
INHIBIT
RESET
DSP
16 WAY
TRANSMIT
S1
CALL
INITIALIZE
100
CONTROL
REGISTER
2
CR2
0=DSP IN
DEMOD MODE
1=DSP IN CALL
PROGRESS
MODE
0=NORMAL
DOTTING
1=S1
TRANSMIT
ATTEN.
0
RECEIVE
GAIN
BOOST
101
CONTROL
REGISTER
3
CR3
0=NO BOOST
1=18 dB BOOST
0000-1111, SETS
TRANSMIT ATTENUATOR
16 dB RANGE
DEFAULT=0100 3 -10 dbM0
0=RX=TX
1=RX=16 WAY
0=DSP
INACTIVE
1=DSP
ACTIVE
0=ADAPT EQ
ACTIVE
1=ADAPT EQ
FROZEN
0=ADAPT EQ
IN INIT
1=ADAPT EQ
OK TO ADAPT
TRANSMIT
ATTEN.
2
TRANSMIT
ATTEN.
1
TRANSMIT
ATTEN.
3
QAM:
DPSK:
FSK:
0=NOT PRESENT
1=PATTERN
FOUND
0=NORMAL OPERATION
1=ALLOWS V.23 FULL
DUPLEX OPERATION
SPECIAL
REGISTER
ACCESS
0=ACCESS CR3
1=ACCESS
SPECIAL
REGISTER
TXDALT
TRISTATE
TX/RXCLK
0=CLOCK
DRIVEN
1=CLOCK
TRISTATE
SPECIAL
REGISTER
101
TX BAUD
CLOCK
RX UNSCR.
DATA
TXD
SOURCE
SQ
SELECT1
SQ
SELECT0
OUTPUTS
TXBAUD
CLOCK
OUTPUTS
UNSCR.
DATA
0=TXD PIN
1=TX DATA
CR3-D7
00310 -5
01310 -6
10310 -4
11310 -3
ALTERNATE
TRANSMIT
DATA
SOURCE
SR
MUST BE 0
0
0 - 1800 HZ
1 - 550 HZ
0 - 2225 HZ
1 - 2100 HZ
0 - 1300 HZ
1 - 900 HZ
00XX=73K212AL, 322L, 321L
01XX=73K221AL, 302L
10XX=73K222AL, 222BL
1100=73K224L
1110=73K324L
1100=73K224BL
1110=73K324BL
ID
REGISTER
10
110
1
1
1
0
0
0
0
X
X
X
X