Port Control Register - Renesas M16C FAMILY series Hardware Manual

M 1 6 C 2 / 8 G o r u p ( M 1 6 C

Port Control Register

b7 b6 b5 b4 b3
Figure 17.9 PCR Register
Pin Assignment Control Register
b7 b6 b5 b4 b3
NOTE:
1. Set the PACR register by the next instruction after setting the PRC2 bit in the PRCR register to "1"(write
enable).
Figure 17.10 PACR Register
R e . v 2 0 . 0 J a . n 3 , 1 2 0 0 7
R E J 0 9 B 0 0 4 7 0 - 2 0 0
2 / , 8 M 1 6 C 2 / 8 ) B
b2 b1 b0
Symbpl
PCR
Bit Symbol
PCR0 Port P1 control bit
Nothing is assigned.
(b7-b1)
content is "0".
(1)
b2 b1 b0
Symbpl
PACR
Bit Symbol
Pin enabling bit
PACR0
PACR1
PACR2
Reserved bits
(b6-b3)
UART1 pin remapping bit
U1MAP
page 292
f o 3 8 5
Address After Reset
03FF 00
16
16
Bit Name
Operation performed when the P1
register is read
0: When the port is set for input,
the input levels of P1
pins are read. When set for
output, the port latch is read.
1: The port latch is read
regardless of whether the port
is set for input or output.
When write, set to "0". When read, its
Address After Reset
025D 00
16
16
Bit Name
010 : 64 pin
011 : 80 pin
All other values are reserved. Do
not use.
Nothing is assigned.
set to "0". When read, its
content is "0".
UART1 pins assigned to
0 : P6
1 : P7
17. Programmable I/O Ports
Function
to P1
0 7
Function
When write,
to P6
7
4
to P7
3 0
RW
RW
RW
RW
RW
RW
RW