Toshiba TLCS-900 Computer Hardware User Manual


 
TMP92CM22
2007-02-16
92CM22-59
Port 6 Register
7 6 5 4 3 2 1 0
Bit symbol P67 P66 P65 P64 P63 P62 P61 P60
Read/Write R/W
After reset Data from external port (Output latch register is cleared to “0”.)
Port 6 Control Register
7 6 5 4 3 2 1 0
Bit symbol P67C P66C P65C P64C P63C P62C P61C P60C
Read/Write W
After reset 0 0 0 0 0 0 0 0
Function 0: Input 1: Output (Note2)
Port 6 Function Register
7 6 5 4 3 2 1 0
Bit symbol P67F P66F P65F P64F P63F P62F P61F P60F
Read/Write W
After reset 1 1 1 1 1 1 1 1
Function 0: Port 1: Address bus (A16 to A23)
Note1: Read-modify-write instruction is prohibited for registers P6CR and P6FC.
Note2: When these ports are used as general-purpose I/O port, each bit can be set individually for input or output.
However, each bit cannot be set individually for input or output even if 1bit or more bits are used as address
bus in same port. All of general-purpose I/O ports except for port that used as address bus are operated as
output port. Please be careful when using this setting.
Figure 3.5.8 Register for Port 6
P6
(0018H)
P6CR
(001AH)
P6FC
(001BH)