Datasheet

DS26503 T1/E1/J1 BITS Element
17 of 122
NAME TYPE FUNCTION
AD[5]/
RMODE1
I/O
Data Bus D[5] or Address/Data Bus AD[5]/Receive Framing Mode Select
Bit 1
A[5]: In nonmultiplexed bus operation (BIS[1:0] = 01), it serves as the data
bus D[5].
AD[5]: In multiplexed bus operation (BIS[1:0] = 00), it serves as the
multiplexed address/data bus AD[5].
RMODE1: In Hardware Mode (BIS[1:0] = 11), it selects the receive side
operating mode.
AD[4]/
RMODE0
I/O
Data Bus D[4] or Address/Data Bus AD[4]/Receive Framing Mode Select
Bit 0
A[4]: In nonmultiplexed bus operation (BIS[1:0] = 01), it serves as the data
bus D[4].
AD[4]: In multiplexed bus operation (BIS[1:0] = 00), it serves as the
multiplexed address/data bus AD[4].
RMODE0: In Hardware Mode (BIS[1:0] = 11), it selects the receive side
operating mode.
AD[3]/TSM I/O
Data Bus D[3] or Address/Data Bus AD[3]/TS Mode Select
A[3]: In nonmultiplexed bus operation (BIS[1:0] = 01), it serves as the data
bus D[3].
AD[3]: In multiplexed bus operation (BIS[1:0] = 00), it serves as the
multiplexed address/data bus AD[3].
TSM: In Hardware Mode (BIS[1:0] = 11), this pin selects the function of TS.
Please see the register descriptions for more detailed information.
AD[2]/RSM/
SCLK
I/O
Data Bus D[2] or Address/Data Bus AD[2]/RS Mode Select/Serial Port
Clock
A[2]: In nonmultiplexed bus operation (BIS[1:0] = 01), it serves as the data
bus D[2].
AD[2]: In multiplexed bus operation (BIS[1:0] = 00), it serves as the
multiplexed address/data bus AD[2].
RSM: In Hardware Mode (BIS[1:0] = 11), this pin selects the function of RS.
Please see the register descriptions for more detailed information.
SCLK: In Serial Port mode this is the serial clock input.