M32C80 Datasheet, PDF (214/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
16. Serial I/O (Special Function)
Table 16.15 Pin Settings in I²C Mode (1)
Port
Function
P62
SCL0 output
SCL0 input
P63
SDA0 output
SDA0 input
P66
SCL1 output
SCL1 input
P67
SDA1 output
SDA1 input
PS0 Register
PS0_2=1
PS0_2=0
PS0_3=1
PS0_3=0
PS0_6=1
PS0_6=0
PS0_7=1
PS0_7=0
Setting
PSL0 Register
PSL0_2=0
-
-
-
PSL0_6=0
-
-
-
PD6 Register
-
PD6_2=0
-
PD6_3=0
-
PD6_6=0
-
PD6_7=0
Table 16.16 Pin Settings (2)
Setting
Port
Function
PS1 Register PSL1 Register PSC Register PD7 Register
P70^{( 1 )}
SDA2 output
SDA2 input
PS1_0=1
PS1_0=0
PSL1_0=0
–
PSC_0=0
–
P71^{( 1 )}
SCL2 output
SCL2 input
PS1_1=1
PS1_1=0
PSL1_1=1
–
PSC_1=0
–
NOTE:
1. P70 and P71 are ports for the N-channel open drain output.
–
PD7_0=0
–
PD7_1=0
Table 16.17 Pin Settings (3)
Port
Function
PS3 Register⁽¹⁾
Setting
PSL3 Register PSC3 Register
PD9 Register⁽¹⁾
P91
SCL3 output
PS3_1=1
PSL3_1=0
-
-
SCL3 input
PS3_1=0
-
-
PD9_1=0
P92
SDA3 output
PS3_2=1
PSL3_2=0
-
-
SDA3 input
PS3_2=0
-
-
PD9_2=0
P96
SDA4 output
PS3_6=1
-
PSC3_6=0
-
SDA4 input
PS3_6=0
-
-
PD9_6=0
P97
SCL4 output
PS3_7=1
PSL3_7=0
-
-
SCL4 input
PS3_7=0
-
-
PD9_7=0
NOTE:
1. Set the PD9 and PS3 registers 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 195 of 330
REJ09B0271-0100