73K212AL TDK [TDK Electronics], 73K212AL Datasheet - Page 14

• Manufacturer Part Number: 73K212AL
• Description: V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid
• Manufacturer: TDK [TDK Electronics]

V.22, V.21, Bell 212A, Bell 103
Single-Chip Modem with Integrated Hybrid
D5, D3-D1
BIT NO.
D7, D6
D5, D4
TONE REGISTER
ID REGISTER
BIT NO.
011
TR
110
D6
D7
ID
D4
OUTPUT
CONTR.
RXD
D7
Guard Tone
RXD Output
D7
1
DEVICE ID
Transmit
Control
Not Used
NAME
(continued)
NAME
OH
TRANSMIT
GUARD
TONE
D6
D6
0
D7 D6 D5 D4
0
0
1
1
1
1
1
TRANSMIT
CONDITION
CONDITION
ANSWER
TONE
0
1
0
1
1
1
1
D5
NA
0
D5
0
1
0
1
1
X
X
X
X
0
1
0
1
X
X
X
0
0
0
0
TRANSMIT
14
DTMF
OH
DESCRIPTION
Disables guard tone generator.
Enables guard tone generator (See D0 for selection of
guard tones).
Enables RXD pin. Receive data will be output on
RXD.
Disables RXD pin. The RXD pin reverts to a high
impedance with internal weak pull-up resistor.
DESCRIPTION
Indicates device type.
73K212AL, 73K321L or 73K322L
73K221AL or 73K302L
73K222AL, 73K222BL
73K224AL
73K324L
73K224BL
73K324BL
Relay driver open
Open drain driver pulling low.
Mask in firmware.
D4
D4
DTMF 3
D3
X
D3
DTMF 2
D2
D2
X
DTMF 1/
SPEED
OVER-
D1
D1
X
ANSWER/
DTMF 0/
GUARD
D0
D0
X