73K224L
V.22bis, V.22, V.21, Bell 212A, 103
Single-Chip Modem
DATA SHEET
REGISTER ADDRESS TABLE
ADDRESS
DATA BIT NUMBER
REGISTER
AD2 - AD0
000
D7
D6
D5
D4
D3
D2
D1
D0
CONTROL
REGISTER CR0
0
MODULATION MODULATION
TRANSMIT
MODE
2
TRANSMIT
MODE
1
TRANSMIT
MODE
0
MODULATION
OPTION
TRANSMIT
ENABLE
ANSWER/
ORIGINATE
TYPE
1
TYPE
0
0000=PWR DOWN
0001=INT SYNCH
0010=EXT SYNCH
0=DISABLE
TXA OUTPUT 1=ORIGINATE
1=ENABLE
0=ANSWER
10=QAM
00=DPSK
01=FSK
QAM: 0=2400 BIT/S
DPSK: 0=1200 BIT/S
1=600 BIT/S
FSK: 0=103 MODE
1=V.21
0011=SLAVE SYNCH
0100=ASYCH 8 BITS/CHAR
0101=ASYCH 9 BITS/CHAR
TXA OUTPUT
0110=ASYCH 10 BITS/CHAR
0111=ASYCH 11 BITS/CHAR
1X00=FSK
TRANSMIT
PATTERN
1
TRANSMIT
PATTERN
0
CONTROL
REGISTER
1
ENABLE
DETECT
INTERRUPT
TEST
MODE
1
TEST
MODE
0
BYPASS
SCRAMBLER
CLK
CONTROL
CR1
001
RESET
00=TX DATA
01=TX ALTERNATE
10=TX MARK
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=TX SPACE
QAM/DPSK
MODE ONLY
11=LOCAL DIGITAL
LOOPBACK
RECEIVE
LEVEL
INDICATOR
UNSCR.
CARRIER
MARKS
DETECT
DETECT
ANSWER
TONE
DETECT
CP
TONE
DETECT
SIGNAL
QUALITY
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
TONE
CONTROL
REGISTER
RXD
OUTPUT
CONTROL
TRANSMIT
GUARD
TONE
TRANSMIT
ANSWER
TONE
DTMF1/
EXTENDED
OVERSPEED
DTMF2/
DTMF3
TRANSMIT
DTMF
TR
011
4 W/FDX
0=DATA
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 ANS TONE
GENERATED
1= 550 Hz G.T.
2100 Hz ANS TONE
GENERATED &
DETECTED (V.21, V.22)
CONTROL
REGISTER
2
SPECIAL
REGISTER
ACCESS
CALL
INITIALIZE
TRANSMIT
S1
RESET
DSP
TRAIN
INHIBIT
EQUALIZER
ENABLE
CR2
100
0
16 WAY
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
CONTROL
REGISTER
3
RECEIVE
GAIN
BOOST
TRANSMIT
ATTEN.
3
TRANSMIT
ATTEN.
2
TRANSMIT
ATTEN.
1
TRANSMIT
ATTEN.
0
TRISTATE
TX/RXCLK
CR3
101
TXDALT
0
ALTERNATE
TRANSMIT
DATA
0=NORMAL
1=TRISTATE
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
SR
101
0
0
0
OUTPUTS
TXBAUD
CLOCK
OUTPUTS
UNSCR.
DATA
0=TXD PIN
1=TXALT BIT
-5
-6
-4
-3
00³10
01³10
10³10
11³10
BER
BER
BER
BER
ID
10
110
ID
ID
ID
ID
X
X
X
X
REGISTER
00XX=73K212AL, 322L, 321L
01XX=73K221AL, 302L
10XX=73K222AL, 222BL
1100=73K224L
1110=73K324L
1100=73K224BL
Page: 7 of131110=73K324BL
© 2005, 2008 TERIDIAN Semiconductor Corporation
Rev 7.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
