INPUT/OUTPUT PORTS AND PIN FUNCTIONS
8.3 Input/Output Port Related Registers
8
P4 Operation Mode Register (P4MOD)
<Address: H’0080 0744>
b0
0
1
0
2
0
3
0
4
5
6
b7
P44MD P45MD P46MD P47MD
0
0
0
0
<After reset: H’00>
b
Bit Name
Function
R
0
W
0
0–3
4
No function assigned. Fix to "0".
P44MD
0: P44
R
W
Port P44 operation mode bit
1: CS0#
5
6
7
P45MD
0: P45
R
R
R
W
W
W
Port P45 operation mode bit
1: CS1#
P46MD
0: P46
1: A13
Port P46 operation mode bit
P47MD
0: P47
1: A14
Port P47 operation mode bit
Note: • P4 Operation Mode Register is useful only when the CPU operates in external extension mode.
P6 Operation Mode Register (P6MOD)
<Address: H’0080 0746>
b0
0
1
0
2
0
3
0
4
0
5
6
b7
0
P65MD P66MD
0
0
<After reset: H’00>
b
Bit Name
Function
R
0
W
0
0–4
5
No function assigned. Fix to "0".
P65MD
0: P65
R
W
Port P65 operation mode bit
1: SCLKI4/SCLKO4
6
7
P66MD
0: P66
R
0
W
0
Port P66 operation mode bit
1: SCLKI5/SCLKO5
No function assigned. Fix to "0".
Notes: • Port P60 is nonexistent.
• P61–P63 and P67 are always input/output ports (single-function pins).
• Port P64 is the SBI# input-only pin. The pin level can be known by reading the data register for P64.
32180 Group User’s Manual (Rev.1.0)
8-11
RENESAS [ RENESAS TECHNOLOGY CORP ]
