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I/O Ports
15-8
Port 0 output mode register
Register symbol: P0MD
Address: x'36008020
Purpose: This register selects the content output on the port 0 pins with P0SS.
Bit No.76543210
Bit name - - - - -
P02MD P01MD P00MD
Reset 0 0 0 0 0 0 0 0
Access R R R R R R/W R/W R/W
Port 0 dedicated output control register
Register symbol: P0SS
Address: x'36008040
Purpose: This register selects the content output on the port 0 pins.
Valid when the P0nMD bit is "0".
Bit No.76543210
Bit name - - - - - P02S - -
Reset 0 0 0 0 0 0 0 0
Access R R R R R R/W R R
P02MD; P02S 00: Address output (A22)
01: DRAM CAS signal output [for 2WE] (CAS)
1x: General-purpose output port (P02)
P01MD 0: Address output (A21)
1: General-purpose output port (P01)
P00MD 0: Address output (A20)
1: General-purpose output port (P00)