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I/O Ports
15-26
Port 4 input/output control register
Register symbol: P4DIR
Address: x'36008068
Purpose: This register sets the port 4 pins for input or output.
(0: input; 1: output)
Bit No. 76543210
Bit name - - P45D P44D P43D P42D P41D P40D
Reset 00000000
Access R R R/W R/W R/W R/W R/W R/W
Port 4 output mode register
Register symbol: P4MD
Address: x'36008028
Purpose: Along with P4SS, this register selects the content output on the port 4 pins.
Bit No. 76543210
Bit name - - P45M P44M P43M P42M P41M P40M
Reset 00111111
Access R R R/W R/W R/W R/W R/W R/W