M32C8A Datasheet, PDF (302/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
22. Programmable I/O Ports
Port Pi Register ^{(1, 2)} (i = 0 to 15)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
P0 to P5
P6 to P10
P11 to P15
Address
03E0h, 03E1h, 03E4h, 03E5h, 03E8h, 03E9h
03C0h, 03C1h⁽³⁾, 03C4h⁽⁴⁾, 03C5h, 03C8h
03C9h⁽⁵⁾, 03CCh, 03CDh, 03D0h⁽⁵⁾, 03D1h
After Reset
Undefined
Undefined
Undefined
Bit Symbol
Bit Name
Pi_0
Port Pi_0 bit
Pi_1
Port Pi_1 bit
Pi_2
Port Pi_2 bit
Pi_3
Port Pi_3 bit
Pi_4
Port Pi_4 bit
Function
RW
Input mode
(The PDi_j bit (j = 0 to 7) in the PDi register = 0) ^RW
Read: Return the pin level.
Write: Write to the port latch.
RW
Output mode
(The PDi_j bit in the PDi register = 1)
Read: Return the port latch value.
Write: Write to the port latch and the port latch
RW
value is output from the pin.
0: "L" level
RW
1: "H" level
RW
Pi_5
Port Pi_5 bit
RW
Pi_6
Port Pi_6 bit
RW
Pi_7
Port Pi_7 bit
RW
NOTES:
1. In microprocessor mode, the Pi register corresponding to the following bus control pins cannot be written: A0 to A22, A23, D0 to
D15, CS0 to CS3, WRL/ WR, WRH/BHE, RD, BCLK/ALE/CLKOUT, ALE, ALE, RDY.
2. Ports P11 to P15 are provided in the 144-pin package only.
3. P7_0 and P7_1 are N-channel open drain output ports. The pins are placed into high-impedance states when the corresponding
bits to P7_0 and P7_1 are set to 1.
4. The P8_5 bit is a read-only bit.
5. Nothing is implemented to bits P11_5 to P11_7 in the P11 register and the P14_7 bit in the P14 register. Write a 0. A read from
these bits returns undefined value.
Figure 22.6 P0 to P15 Registers
Rev.1.00 Jul 15, 2007 Page 285 of 352
REJ09B0385-0100