M16C28 Datasheet, PDF (311/423 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/28 Group (M16C/28, M16C/28B)
17. Programmable I/O Ports
Pull-up Control Register 0 (1)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUR0
Address
03FC16
After Reset
0016
Bit Symbol
Bit Name
Function
RW
PU00
P00 to P03 pull-up
0 : Not pulled up
RW
PU01
P04 to P07 pull-up
1 : Pulled up ⁽¹⁾
RW
PU02
P10 to P13 pull-up
RW
PU03
P14 to P17 pull-up
RW
PU04
P20 to P23 pull-up
RW
PU05
P24 to P27 pull-up
RW
PU06
P30 to P33 pull-up
RW
PU07
P34 to P37 pull-up
RW
NOTE:
1. The pin for which this bit is “1” (pulled up) and the direction bit is “0” (input mode) is pulled up.
Pull-up Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUR1
Address
03FD16
After Reset
0016
Bit Symbol
Bit Name
Function
RW
Nothing is assigned. When write, set to "0".
(b3-b0) _{When read, the content is "0".}
PU14 P60 to P63 pull-up
0 : Not pulled high
RW
PU15 P64 to P67 pull-up
1 : Pulled high ⁽¹⁾
RW
PU16 P70 to P73 pull-up
RW
PU17 P74 to P77 pull-up
RW
NOTE:
1. The pin for which this bit is “1” (pulled up) and the direction bit is “0” (input mode) is pulled up.
Pull-up Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUR2
Address
03FE16
After Reset
0016
Bit Symbol
Bit Name
Function
RW
PU20
P80 to P83 pull-up
0 : Not pulled up
RW
PU21
P84 to P87 pull-up
1 : Pulled up ⁽¹⁾
RW
PU22
P90 to P93 pull-up
RW
PU23
P95 to P97 pull-up
RW
PU24
P100 to P103 pull-up
RW
PU25
P104 to P107 pull-up
RW
(b7-b6)
Nothing is assigned. When write, set to "0".
When read, the content is "0".
NOTE:
1. The pin for which this bit is “1” (pulled up) and the direction bit is “0” (input mode) is pulled up.
Figure 17.8 PUR0 to PUR2 Registers
Rev. 2.00 Jan. 31, 2007 ^{page 291} of 385
REJ09B0047-0200