Renesas M16C/6NK Manual Do Utilizador
Rev.1.10 Jul 01, 2005 page 235 of 318
REJ09B0124-0110
REJ09B0124-0110
M16C/6N Group (M16C/6NK, M16C/6NM)
19. Programmable I/O Ports
Under development
This document is under development and its contents are subject to change.
Pull-up Control Register 0
Bit Name
Bit Symbol
RW
b7
b6
b5
b4
b3
b2
b1
b0
PUR0
03FCh
00h
Symbol
Address
After Reset
NOTE:
1. The pin for which this bit is "1" (pulled high) and the direction bit is "0" (input mode) is pulled high.
PU00
PU01
PU02
PU03
PU04
PU05
PU06
PU07
P0_0 to P0_3 Pull-Up
P0_4 to P0_7 Pull-Up
P1_0 to P1_3 Pull-Up
P1_4 to P1_7 Pull-Up
P2_0 to P2_3 Pull-Up
P2_4 to P2_7 Pull-Up
P3_0 to P3_3 Pull-Up
P3_4 to P3_7 Pull-Up
0 : Not pulled high
1 : Pulled high
1 : Pulled high
(1)
RW
RW
RW
RW
RW
RW
RW
RW
Function
Pull-up Control Register 1
Bit Name
Bit Symbol
RW
b7
b6
b5
b4
b3
b2
b1
b0
PUR1
03FDh
00h
Symbol
Address
After Reset
NOTES:
1. The P7_1 pin does not have pull-up.
2. The pin for which this bit is "1" (pulled high) and the direction bit is "0" (input mode) is pulled high.
2. The pin for which this bit is "1" (pulled high) and the direction bit is "0" (input mode) is pulled high.
PU10
PU11
PU12
PU13
PU14
PU15
PU16
PU17
P4_0 to P4_3 Pull-Up
P4_4 to P4_7 Pull-Up
P5_0 to P5_3 Pull-Up
P5_4 to P5_7 Pull-Up
P6_0 to P6_3 Pull-Up
P6_4 to P6_7 Pull-Up
P7_0, P7_2 and P7_3 Pull-Up
(1)
P7_4 to P7_7 Pull-Up
0 : Not pulled high
1 : Pulled high
1 : Pulled high
(2)
RW
RW
RW
RW
RW
RW
RW
RW
Function
Pull-up Control Register 2
Bit Name
Bit Symbol
RW
b7
b6
b5
b4
b3
b2
b1
b0
PUR2
03FEh
00h
Symbol
Address
After Reset
NOTES:
1. The P8_5 pin does not have pull-up.
2. The P9_1 pin does not have pull-up.
3. The pin for which this bit is "1" (pulled high) and the direction bit is "0" (input mode) is pulled high.
2. The P9_1 pin does not have pull-up.
3. The pin for which this bit is "1" (pulled high) and the direction bit is "0" (input mode) is pulled high.
PU20
PU21
PU22
PU23
PU24
PU25
-
(b7-b6)
P8_0 to P8_3 Pull-Up
P8_4, P8_6 and P8_7 Pull-Up
(1)
P9_0, P9_2 and P9_3 Pull-Up
(2)
P9_4 to P9_7 Pull-Up
P10_0 to P10_3 Pull-Up
P10_4 to P10_7 Pull-Up
0 : Not pulled high
1 : Pulled high
1 : Pulled high
(3)
RW
RW
RW
RW
RW
RW
-
Function
Nothing is assigned. When write, set to "0".
When read, their contents are "0".
When read, their contents are "0".
Figure19.9 PUR0, PUR1 and PUR2 Registers