
IDT82V2082
DUAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
PIN DESCRIPTION
15
May 4, 2009
SDO
LP20
O
I
43
F9
SDO: Serial Data Output
In serial microcontroller interface mode, this signal is the output data of the serial interface. Configuration or Status data
at SDO pin is clocked out of the device on the rising edge of SCLK if SCLKE pin is low, or on the falling edge of SCLK
if SCLKE pin is high.
In parallel non-multiplexed interface mode, this pin should be left open.
LP21/LP20: loopback mode select for channel 2
See above LP21.
D7
PULS13
I/O
I
54
D8
D7: Data Bus bit7
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
PULS1[3:0]: these pins are used to select the following functions for channel 1 in hardware control mode:
T1/E1/J1 mode
Transmit pulse template
Internal termination impedance (75
/120/100/110)
Note that PULS13 to PULS10 determine the T1/E1/J1 mode of common block.
D6
PULS12
I/O
I
53
F5
D6: Data Bus bit6
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
See above.
D5
PULS11
I/O
I
52
E7
D5: Data Bus bit5
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
See above.
D4
PULS10
I/O
I
51
D9
D4: Data Bus bit4
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
See above.
D3
PULS23
I/O
I
50
E8
D3: Data Bus bit3
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
PULS2[3:0]: these pins are used to select the following functions for channel 2 in hardware control mode:
T1/E1/J1 mode
Transmit pulse template
Internal termination impedance (75
/120 /100 /110 )
D2
PULS22
I/O
I
49
E9
D2: Data Bus bit2
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
See above.
D1
PULS21
I/O
I
48
F6
D1: Data Bus bit1
In Intel/Motorola non-multiplexed interface mode, this signal is the bi-directional data bus of the microcontroller interface.
In serial microcontroller interface mode, this pin should be connected to ground through a 10 k
resistor.
See above.
Table-1 Pin Description (Continued)
Name
Type
TQFP80
Pin No.
FPBGA81
Pin No.
Description