73K302L TDK [TDK Electronics], 73K302L Datasheet - Page 8

• Manufacturer Part Number: 73K302L
• Description: Single-Chip Modem
• Manufacturer: TDK [TDK Electronics]

Bell 212A, 103, 202
Single-Chip Modem
REGISTER ADDRESS TABLE
00XX=73K212AL, 322L, 321L
01XX=73K221AL, 302L
10XX=73K222AL, 222BL
1100=73K224L
1110=73K324L
1100=73K224BL
1110=73K324BL
REGISTER
CONTROL
REGISTER
CONTROL
REGISTER
REGISTER
CONTROL
REGISTER
DETECT
TONE
REGISTER
ID
0
1
CR0
CR1
DR
TR
10
ADDRESS
AD2 - AD0
001
010
000
011
110
MODULATION
0=103 FSK
1=202 FSK
RXD PIN
0=NORMAL
1=TRI STATE
TRANSMIT
CONTROL
PATTERN
OUTPUT
OPTION
RXD
D7
1
X
X = Undefined, mask in software
0 = Only write zeros to this location
ID
00=TX DATA
01=TX ALTERNATE
10=TX MARK
11=TX SPACE
TRANSMIT
TRANSMIT
PATTERN
0=OFF
1=ON
TONE
SCT
D6
0
0
X
ID
OUTPUTS
RECEIVED
DATA STREAM
INTERRUPT
0=DISABLE
1=ENABLE
TRANSMIT
TRANSMIT
ANSWER
ENABLE
RECEIVE
DETECT
0=OFF
1=ON
MODE
DATA
TONE
D5
3
ID
0000=PWR DOWN
1100=FSK
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
1100=FSK BELL 103 OR 202
0=NORMAL
1=BYPASS
1=ADD EXTRA
SCRAMBLER/
0=DATA
1=TX DTMF
ADD PH. EQ.
TRANSMIT
TRANSMIT
SCRAMBLER
PHASE EQ.
IN 202 ONLY
BYPASS
UNSCR.
8
MODE
MARK
DTMF
DATA BIT NUMBER
D4
2
ID
0=XTAL
1=16 X DATA
RATE OUTPUT
AT CLK PIN IN
DPSK MODE
ONLY
TRANSMIT
CONTROL
CARRIER
DETECT
MODE
DTMF3
CLK
D3
1
X
0=NORMAL
1=FULL DUPLEX IN 202 MODE
4 BIT CODE FOR 1 OF 16
DUAL TONE COMBINATIONS.
0=NORMAL
1=RESET
TRANSMIT
0=CONDITION NOT DETECTED
1=CONDITION DETECTED
SPECIAL
DTMF2/
RESET
MODE
TONE
202T
FDX
D2
0
X
0=DISABLE
1=ENABLE
OVERSPEED
PROGRESS
TRANSMIT
TXA OUTPUT
TXA OUTPUT
ENABLE
DTMF1/
CALL
MODE
TEST
D1
0=1%
1=2.5%
00=NORMAL
01=ANALOG LOOPBACK
10=REMOTE DIGITAL
11=LOCAL DIGITAL
1
X
LOOPBACK
LOOPBACK
0=900 HZ SCT TONE IF
1=FSK MARK
IN 212, 103 MODES:
0=ANSWER
1=ORIGINATE
IN 202 MODE:
0=RECEIVE @ 1200 BIT/S,
TRANSMIT @ 150 BIT/S
1=RECEIVE @ 150 BIT/S,
TRANSMIT @ 1200 BIT/S
ORIGINATE/
ANSWER
SPECIAL
DTMF0/
IN ANSWER MODE
=2225 HZ ANSWER TONE
IN 103 OR 212 ORIGINATE
MODES
MODE
LOOP
LONG
TONE
TEST
D0
0
X