73K324L
CCITT V.22bis,V.23,V.22,V.21, Bell 212A
Single-Chip Modem
DATA SHEET
REGISTER ADDRESS TABLE
ADDRESS
DATA BIT NUMBER
REGISTER
AD2 - AD0
D7
D6
D5
D4
D3
D2
D1
D0
CONTROL
REGISTER
0
MODULATION
OPTION
MODULATION MODULATION
TRANSMIT
MODE
2
TRANSMIT
MODE
1
TRANSMIT
MODE
0
TRANSMIT
ENABLE
ANSWER/
ORIGINATE
000
CR0
TYPE
1
TYPE
0
0000=PWR DOWN
0001=INT SYNCH
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
TXA OUTPUT 1=ORIGINATE
0=ANSWER
10=QAM
00=DPSK
01=FSK
QAM: 0=2400 BIT/S
DPSK: 0=1200 BIT/S
1=600 BIT/S
1=ENABLE
in V.23
TXA OUTPUT 0=BC xmit
1=MC xmit
FSK: 0=V.23
1=V.21
BYPASS
CONTROL
REGISTER
1
TRANSMIT
PATTERN
1
TRANSMIT
PATTERN
0
ENABLE
DETECT
INTERRUPT
CLK
CONTROL
TEST
MODE
1
TEST
MODE
0
SCRAMBLER/
ADD PH. EQ.
(V.23)
CR1
001
RESET
00=TX DATA
01=TX ALTERNATE
10=TX MARK
0=OFF
1=ON
0=NORMAL
1=BYPASS
SCRAMBLER RATE OUTPUT
AT CLK PIN IN
0=XTAL
1=16 X DATA
0=NORMAL
1=RESET
00=NORMAL
01=ANALOG LOOPBACK
10=REMOTE DIGITAL
LOOPBACK
11=TX SPACE
QAM/DPSK
MODE ONLY
11=LOCAL DIGITAL
LOOPBACK
UNSCR.
CARRIER
MARKS
DETECT
DETECT
SPECIAL
TONE
DETECT
CP
TONE
DETECT
SIGNAL
QUALITY
INDICATOR
RECEIVE
LEVEL
INDICATOR
DETECT
REGISTER
S1 PATTERN
DETECT
RECEIVE
DATA
DR
010
0=SIGNAL
BELOW
THRESHOLD
0=NOT PRESENT OUTPUTS
0=CONDITION NOT DETECTED
1=CONDITION DETECTED
0=GOOD
1=BAD
1=PATTERN
FOUND
RECEIVED
DATA STREAM
1=ABOVE
THRESHOLD
DTMF0/
GUARD/
ANSWER/
CALLING/SCT
TRANSMIT
GUARD/
CALLING/
SCT TONE
RXD
OUTPUT
CONTROL
TRANSMIT
ANSWER
TONE
DTMF2/
4 WIRE
FDX
DTMF1/
OVERSPEED
TONE
CONTROL
REGISTER
TRANSMIT
DTMF
DTMF3
TR
011
4 BIT CODE FOR 1 OF 16
DUAL TONE COMBINATIONS
1=TX DTMF
RXD PIN
0=NORMAL
1=TRI-STATE
0=OFF
1=ON
0=OFF
1=ON
GUARD: 0 - 1800 HZ
1 - 550 HZ
ANSWER: 0 - 2225 HZ
1 - 2100 HZ
0=NORMAL OPERATION
1=ALLOWS V.23 FULL
DUPLEX OPERATION
CALLING: 0 - 1300 HZ
SCT:
1 - 900 HZ
SPECIAL
REGISTER
ACCESS
CONTROL
REGISTER
2
CALL
INITIALIZE
EQUALIZER
ENABLE
RESET
DSP
TRAIN
INHIBIT
TRANSMIT
S1
16 WAY
MUST BE 0
CR2
100
0=ADAPT EQ
IN INIT
1=ADAPT EQ
OK TO ADAPT
0=NORMAL
DOTTING
1=S1
0=RX=TX
1=RX=16 WAY
0=DSP
INACTIVE
1=DSP
0=ADAPT EQ
ACTIVE
1=ADAPT EQ
FROZEN
0=ACCESS CR3 0=DSP IN
1=ACCESS
SPECIAL
DEMOD MODE
1=DSP IN CALL
PROGRESS
MODE
ACTIVE
REGISTER
TRANSMIT
ATTEN.
1
TRANSMIT
ATTEN.
0
CONTROL
REGISTER
3
RECEIVE
GAIN
BOOST
TRANSMIT
ATTEN.
3
TRANSMIT
ATTEN.
2
TRISTATE
TX/RXCLK
CR3
101
TXDALT
0
0=CLOCK
DRIVEN
1=CLOCK
TRISTATE
ALTERNATE
TRANSMIT
DATA
0=NO BOOST
1=18 dB BOOST
0000-1111, SETS
TRANSMIT ATTENUATOR
16 dB RANGE
SOURCE
DEFAULT=0100 ³ -10 dbM0
SPECIAL
REGISTER
TX BAUD
CLOCK
RX UNSCR.
DATA
TXD
SOURCE
SQ
SELECT1
SQ
SELECT0
0
0
0
101
SR
OUTPUTS
TXBAUD
CLOCK
OUTPUTS
UNSCR.
DATA
0=TXD PIN
1=TX DATA
CR3-D7
-5
-6
-4
-3
00³10
01³10
10³10
11³10
BER
BER
BER
BER
ID
10
110
1
1
1
0
X
X
X
X
REGISTER
00XX=73K212AL, 322L, 321L
01XX=73K221AL, 302L
10XX=73K222AL, 222BL
1100=73K224L
1110=73K324L
1100=73K224BL
1110=73K324BL
Page: 7 of 30
© 2005, 2008 TERIDIAN Semiconductor Corporation
Rev 7.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
