M32C80 Datasheet, PDF (204/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
16. Serial I/O (UART)
Table 16.8 Pin Settings in UART Mode (1)
Port
P60
P61
P62
P63
P64
P65
P66
P67
Function
__________
CTS0 input
__________
RTS0 output
CLK0 input
RxD0 input
TxD0 output
__________
CTS1 input
__________
RTS1 output
CLK1 input
RxD1 input
TxD1 output
PS0 Register
PS0_0=0
PS0_0=1
PS0_1=0
PS0_2=0
PS0_3=1
PS0_4=0
PS0_4=1
PS0_5=0
PS0_6=0
PS0_7=1
Setting
PSL0 Register
–
–
–
–
–
–
PSL0_4=0
–
–
–
PD6 Register
PD6_0=0
–
PD6_1=0
PD6_2=0
–
PD6_4=0
–
PD6_5=0
PD6_6=0
–
Table 16.9 Pin Settings (2)
Port
Function
Setting
P70(1)
P71(1)
TxD2 output
RxD2 input
PS1 Register
PS1_0=1
PS1_1=0
PSL1 Register
PSL1_0=0
–
PSC Register
PSC_0=0
–
P72
CLK2 input
PS1_2=0
__________
P73
CTS2 input
PS1_3=0
__________
RTS2 output
PS1_3=1
–
–
PSL1_3=0
–
–
PSC_3=0
NOTE:
1. P70 and P71 are ports for the N-channel open drain output.
PD7 Register
–
PD7_1=0
PD7_2=0
PD7_3=0
–
Table 16.10 Pin Settings (3)
Port
Function
Setting
PS3 Register⁽¹⁾ PSL3 Register
PSC3 Register PD9 Register⁽¹⁾
P90
CLK3 input
PS3_0=0
–
–
PD9_0=0
P91
RxD3 input
PS3_1=0
–
–
PD9_1=0
P92
P93
P94
TxD3 output
__________
CTS3 input
__________
RTS3 output
__________
CTS4 input
__________
RTS4 output
PS3_2=1
PS3_3=0
PS3_3=1
PS3_4=0
PS3_4=1
PSL3_2=0
–
PSL3_3=0
–
–
–
PSL3_4=0
–
–
–
–
PD9_3=0
–
PD9_4=0
–
P95
CLK4 input
PS3_5=0
PSL3_5=0
–
PD9_5=0
P96
TxD4 output
PS3_6=1
–
PSC3_6=0
–
P97
RxD4 input
PS3_7=0
–
–
PD9_7=0
NOTE:
1. Set the PD9 and PS3 registers set 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 to the PRC2 bit to "1" and the
instruction to set the PD9 and PS3 registers.
Rev. 1.00 Nov. 01, 2005 Page 185 of 330
REJ09B0271-0100