73K224BL
V.22bis, V.22, V.21, Bell 212A, 103
Single-Chip Modem w/ Integrated Hybrid
DATA SHEET
REGISTER ADDRESS TABLE
ADDRESS
DATA BIT NUMBER
REGISTER
AD2 - AD0
D7
D6
D5
D4
D3
D2
D1
D0
CONTROL
REGISTER
0
MODULATION MODULATION
TRANSMIT
MODE
2
TRANSMIT
MODE
1
TRANSMIT
MODE
0
MODULATION
OPTION
TRANSMIT
ENABLE
ORIGINATE/
ANSWER
CR0
000
TYPE
1
TYPE
0
QAM: 0 = 2400 BIT/S
DPSK: 0=1200 BIT/S
1 = 600 BIT/S
FSK: 0 = 103 MODE
1 = V.21
10=QA,
00=DPSK
01=FSK
0 = ANSWER
1 = ORIGINATE
0000 = PWR DOWN
0 = DISABLE
0001 = INT SYNCH
0010 = EXT SYNCH
0011 = SLAVE SYNCH
0100 = ASYNCH 8 BITS/CHAR
0101 = ASYNCH 9 BITS/CHAR
0110 = ASYNCH 10 BITS/CHAR
0111 = ASYNCH 11 BITS/CHAR
1X00 = FSK
TXA OUTPUT
1 = ENABLE
TXA OUTPUT
TRANSMIT
PATTERN
1
TRANSMIT
PATTERN
0
ENABLE
DETECT
INTERRUPT
TEST
MODE
1
TEST
MODE
0
CONTROL
REGISTER
1
BYPASS
SCRAMBLER
CLK
CONTROL
001
RESET
CR1
00 = TX DATA
01 = TX ALTERNATE
(DOTTING)
10 = TX MARK
11 = TX SPACE
0 = DISABLE
1 = ENABLE
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 = LOCAL DIGITAL
LOOPBACK
QAM/DPSK MODE
ONLY
RECEIVE
LEVEL
INDICATOR
S1
PATTERN
DETECT
CP
TONE
DETECT
ANSWER
TONE
DETECT
SIGNAL
QUALITY
INDICATOR
UNSCR.
DETECT
REGISTER
READ ONLY
RECEIVE
DATA
CARRIER
DR
010
MARKS
DETECT
DETECT
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
RXD
OUTPUT
CONTROL
TRANSMIT
GUARD/
TONE
TRANSMIT
ANSWER
TONE
DTMF1/
EXTENDED
OVERSPEED
DTMF0/
GUARD/
ANSWER
TONE
CONTROL
REGISTER
DTMF2/
DTMF3
TRANSMIT
DTMF
011
TR
4W/FDX
0 = DATA
CARRIER
1=TX DTMF
RXD PIN
0 = NORMAL
1 = OPEN
0 = OFF
1 = ON
4 BIT CODE FOR 1 OF 16
DUAL TONE COMBINATIONS
0 = OFF
1 = ON
0 = 1800 Hz G.T.
2225 Hz ANNS TONE
GENERATED
1 = 550 Hz ANS TONE
2100 Hz ANS TONE
GENERATED &
DETECTED (V.21, V.22)
SPECIAL
REGISTER
ACCESS
CONTROL
REGISTER
2
TRAIN
INHIBIT
EQUALIZER
ENABLE
CALL
INTIALIZE
RESET
DSP
TRANSMIT
S1
16 WAY
CR2
100
0
0=ACCESS CR3 0=DSP IN
0=NORMAL
DOTTING
1=S1
0=RX=TX
0=DSP
INACTIVE
1=DSP
0=ADAPT EQ
ACTIVE
1=ADAPT EQ
FROZEN
0=ADAPT EQ
IN RESET STATE
1=ADAPT EQ
ACTIVE
1=ACCESS
SPECIAL
DEMOD MODE
1=RX=16WAY
TX=4WAY
IN DPSK
1=DSP IN CALL
PROGRESS
MODE
REGISTER
ACTIVE
TRANSMIT
ATTEN.
1
RECEIVE
GAIN
BOOST
TRANSMIT
ATTEN.
3
TRANSMIT
ATTEN.
2
TRANSMIT
ATTEN.
0
CONTROL
REGISTER
3
TRISTATE
TX/RXCLK
OH
CR3
101
TXDALT
ALTERNATE
TRANSMIT
DATA
0=NORMAL
1=TRISTATE
0=OH RELAY
DRIVER OPEN 1=18 dB BOOST
1=OH OPEN
DRAIN
0=NO BOOST
0000-1111,SETS
TRANSMIT ATTENUATOR
16 dB RANGE
SOURCE
DEFAULT=0100 -10 dBm0
DRIVER PULLING
LOW
SQ
SELECT 0
SQ
SELECT 1
TXD
SOURCE
TX BAUD
CLOCK
SPECIAL
REGISTER
RX UNSCR.
0
DATA
0
SR
101
0
OUTPUTS
TXBAUD
CLOCK
OUTPUTS
UNSCR.
DATA
0=TXD PIN
1=TXALT BIT
-5
-6
-4
-3
00 10
01 10
10 10
11 10
BER
BER
BER
BER
ID
10
110
1
1
0
0
X
X
X
X
REGISTER
READ ONLY
00XX=73K212AL, 322L, 321L
01XX=73K221AL, 302L
10XX=73K222AL, 222BL
1100=73K224L, 224BL
1110=73K324L, 324BL
0 = Only write zeros to these locations
X = Undefined, mask in software
Page: 9 of 33
© 2005, 2008 TERIDIAN Semiconductor Corporation
Rev 7.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
