R01UH0092EJ0110 Rev.1.10
Page 181 of 807
Jul 31, 2012
M16C/64C Group
13. Programmable I/O Ports
13.3.3
Pull-Up Control Register 2 (PUR2)
PU20 (P8_0 to P8_3 pull-up) (b0)
PU22 (P9_0 to P9_3 pull-up) (b2)
PU23 (P9_4 to P9_7 pull-up) (b3)
PU24 (P10_0 to P10_3 pull-up) (b4)
PU25 (P10_4 to P10_7 pull-up) (b5)
When the PU2i (i = 0, 2 to 5) bit is 1 (pulled high) and the direction bit is 0 (input mode), the
corresponding pin is pulled high.
PU21 (P8_4, P8_6, P8_7 pull-up) (b1)
When the PU21 bit is 1 (pulled high) and the direction bit is 0 (input mode), the corresponding pin is
pulled high.
The P8_5 pin is not pulled high.
b7 b6 b5 b4
b1
b2
b3
Pull-Up Control Register 2
Symbol
PUR2
Address
0362h
Bit Symbol
RW
Reset Value
00h
b0
Function
PU20
0 : Not pulled high
1 : Pulled high
RW
PU21
RW
PU22
RW
PU23
RW
PU24
RW
PU25
RW
—
(b7-b6)
No register bits. If necessary, set to 0. The read value is 0.
—
Bit Name
P8_0 to P8_3 pull-up
P8_4, P8_6, P8_7 pull-up
P9_0 to P9_3 pull-up
P9_4 to P9_7 pull-up
P10_0 to P10_3 pull-up
P10_4 to P10_7 pull-up
Summary of Contents for M16C Series
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