M32C80 Datasheet, PDF (289/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
22. Programmable I/O Ports
Function Select Register A2
b7 b6 b5 b4 b3 b2 b1 b0
00 00
Symbol
PS2
Address
03B416
After Reset
00X0 00002
Bit
Symbol
Bit Name
Function
RW
PS2_0
Port P80 Output
Function Select Bit
0: I/O port
1: Selected by the PSL2_0 bit
RW
PS2_1 ^{Port P81 Output}
Function Select Bit
0: I/O port
1: Selected by the PSL2_1 bit
RW
PS2_2
Port P82 Output
Function Select Bit
0: I/O port
1: Selected by the PSL2_2 bit
RW
Reserved Bit
Set to "0"
RW
(b4 - b3)
Nothing is assigned. When write, set to "0".
(b5) When read, its content is indeterminate.
(b7 - b6) ^{Reserved Bit}
Set to "0"
RW
Function Select Register A3⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PS3
Address
03B516
After Reset
0016
Bit
Symbol
Bit Name
Function
RW
PS3_0 ^{Port P90 Output}
Function Select Bit
0: I/O port
1: CLK3 output
RW
PS3_1 ^{Port P91 Output}
Function Select Bit
0: I/O port
1: Selected by the PSL3_1 bit
RW
PS3_2 ^{Port P92 Output}
Function Select Bit
0: I/O port
1: Selected by the PSL3_2 bit
RW
PS3_3 ^{Port P93 Output}
0: I/O port
RW
Function Select Bit
1: RTS3
PS3_4 ^{Port P94 Output}
Function Select Bit
0: I/O port
1: RTS4
RW
PS3_5 ^{Port P95 Output}
Function Select Bit
0: I/O port
1: CLK4 output
RW
PS3_6
Port P96 Output
Function Select Bit
0: I/O port
1: Selected by the PSC3_6 bit
RW
Port P97 Output
0: I/O port
PS3_7 _{Function Select Bit}
1: Selected by the PSL3_7 bit
RW
NOTE:
1. Set the PS3 register immediately after the PRC2 bit in the PRCR register is set to "1" (write enabled).
Do not generate an interrupt or a DMA transfer between the instruction to set the PRC2 bit to "1"
and the instruction to set the PS3 register.
Figure 22.8 PS2 Register and PS3 Register
Rev. 1.00 Nov. 01, 2005 ^{Page 270} of 330
REJ09B0271-0100