Renesas M16C/62P Series Hardware Manual page 281

M16C/62P Group (M16C/62P, M16C/62PT)
Pull-Up Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
NOTES :
1. The pin for w hich this bit is "1" (pulled high) and the direction bit is "0" (input mode) is pulled high.
2. The P8_5 pin does not have pull-up.
Figure 21.11 PUR2 Register
Port Control Register
b7 b6 b5 b4 b3 b2 b1 b0
Figure 21.12 PCR Register
Rev.2.41 Jan 10, 2006
REJ09B0185-0241
http://www.xinpian.net
Symbol
PUR2
Bit Name
Bit Symbol
PU20 P8_0 to P8_3 Pull-Up
PU21 P8_4 to P8_7 Pull-Up
PU22 P9_0 to P9_3 Pull-Up
PU23 P9_4 to P9_7 Pull-Up
PU24 P10_0 to P10_3 Pull-Up
PU25 P10_4 to P10_7 Pull-Up
— Nothing is assigned. When w rite, set to "0".
(b7-b6) When read, their contenta are "0".
Symbol
PCR
Bit Name
Bit Symbol
Port P1 Control Bit
PCR0
— Nothing is assigned. When w rite, set to "0".
(b7-b1) When read, their contents are "0".
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Address
03FEh
0 : Not pulled high
1 : Pulled high
(2)
Address
03FFh
Operation performed w hen the P1 register is read
0 : When the port is set for input, the input levels of
P1_0 to P1_7 pins are read. When set for output,
the port latch is read.
1 : The port latch is read regardless of w hether the
port is set for input or output.
21. Programmable I/O Ports
After Reset
00h
Function
(1)
After Reset
00h
Function
010-62245566 13810019655
RW
RW
RW
RW
RW
RW
RW
—
RW
RW
—