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73K321L Datasheet(PDF) 7 Page - TDK Electronics |
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73K321L Datasheet(HTML) 7 Page - TDK Electronics |
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7 / 24 page  73K321L CCITT V.23, V.21 Single-Chip Modem 7 REGISTER ADDRESS TABLE X = Undefined, mask in software 0 = Only write zero to these locations TRANSMIT MODE 4 00=NORMAL 01=ANALOG LOOPBACK 10=REMOTE DIGITAL LOOPBACK 11=LOCAL DIGITAL LOOPBACK CONTROL REGISTER 0 000 TRANSMIT MODE 3 TRANSMIT MODE 2 TRANSMIT ENABLE ORIGINATE/ ANSWER DATA BIT NUMBER AD2 - AD0 REGISTER ADDRESS D7 D6 D5 D4 D3 D2 D1 D0 TEST MODE 0 TEST MODE 1 RESET CLK CONTROL ADD PH. EQ. ENABLE DETECT INTERRUPT TRANSMIT PATTERN 0 TRANSMIT PATTERN 1 001 CONTROL REGISTER 1 CR1 LONG LOOP CALL PROGRESS SPECIAL TONE CARRIER DETECT RECEIVE DATA 010 DETECT REGISTER DR DTMF0/ SPECIAL TONE DTMF1 DTMF2/ V.23 FDX DTMF3 TRANSMIT DTMF TRANSMIT ANSWER TONE RXD OUTPUT CONTROL 011 TONE CONTROL REGISTER TR TRANSMIT MODE 0 0000=PWR DOWN 1100=FSK 0001=TRANSMIT DTMF, CALL PROGRESS DETECTION 0=DISABLE TXA OUTPUT 1=ENABLE TXA OUTPUT IN V.21 MODE: 0=ANSWER 1=ORIGINATE IN V.23 MODE : 0=RECEIVE @ 1200 BIT/S, TRANSMIT @ 75 BIT/S 1=RECEIVE @ 75 BIT/S, TRANSMIT @ 1200 BIT/S 00=TX DATA 01=TX ALTERNATE 10=TX MARK 11=TX SPACE 0=DISABLED 1=ENABLED 0=NORMAL EQ. 1=ADD EXTRA PHASE EQ. IN V.23 0=XTAL 1= NOT SUPPORTED IN THIS DEVICE 0=NORMAL 1=RESET OUTPUTS RECEIVED DATA STREAM 0=CONDITION NOT DETECTED 1=CONDITION DETECTED RXD PIN 0=NORMAL 1=TRI STATE 0=OFF 1=ON 0=DATA 1=TX DTMF 4 BIT CODE FOR 1 OF 16 DUAL TONE COMB- INATIONS. OVERIDES OTHER TRANSMIT MODES CR0 0=V.23 FSK 1=V.21 FSK TRANSMIT CALLING TONE 0=ANSWER TONE FREQ.=2225 Hz FSK MARK WILL BE INDICATED BY SPECIAL TONE BIT IN DR 1=ANSWER TONE FREQ.=2100 Hz EITHER 2100 Hz (IN ORIG.) OR 1300 Hz (IN ANS.) WILL BE INDICATED BY SPECIAL TONE BIT IN DR 0=OFF 1=ON 0=HALF DUPLEX V.23 1=ALLOWS V.23 FULL DUPLEX OPERATION 00XX=73K212AL, 322L, 321L 01XX=73K221AL, 302L 10XX=73K222AL, 222BL 1100=73K224L 1110=73K324L 1100=73K224BL 1110=73K324BL ID REGISTER 10 110 ID ID ID ID 0 0 X X X X X X X |
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