Renesas M16C/62P Series Hardware Manual page 279

M16C/62P Group (M16C/62P, M16C/62PT)
Port P14 Control Register (128-Pin Package)
b7 b6 b5 b4 b3 b2 b1 b0
Pull-Up Control Register 3 (128-Pin Package)
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. If the PU37 bit is set to "0" (unusable), the P11 to P14 registers are cleared to "0".
Figure 21.9 PC14 and PUR3 Registers
Rev.2.41 Jan 10, 2006
REJ09B0185-0241
http://www.xinpian.net
Symbol
PC14
Bit Name
Bit Symbol
Port P14_0 Bit
P140
Port P14_1 Bit
P141
— Nothing is assigned. When w rite, set to "0".
(b3-b2) When read, their contents are indeterminate.
Port P14_0 Direction Bit
PD140
Port P14_1 Direction Bit
PD141
— Nothing is assigned. When w rite, set to "0".
(b7-b6) When read, their contents are indeterminate.
Symbol
PUR3
Bit Name
Bit Symbol
PU30 P11_0 to P11_3 Pull-UP
PU31 P11_4 to P11_7 Pull-UP
PU32 P12_0 to P12_3 Pull-UP
PU33 P12_4 to P12_7 Pull-UP
PU34 P13_0 to P13_3 Pull-UP
PU35 P13_4 to P13_7 Pull-UP
PU36 P14_0, P14_1 Pull-UP
P11 to P14 Enabling
PU37
Page 264 of 390
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Address
03DEh
The pin level on any I/O port w hich is set for input mode
can be read by reading the corresponding bit in this
register.
The pin level on any I/O port w hich is set for output
mode can be controlled by w riting to the corresponding
bit in this register (except for P8_5)
0 : "L" level
1 : "H" level
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
Address
03DFh
0 : Not pulled high
(1)
1 : Pulled high
(2)
0 : Unusable
1 : Usable
21. Programmable I/O Ports
After Reset
XX00XXXXb
Function
After Reset
00h
Function
010-62245566 13810019655
RW
RW
RW
—
RW
RW
—
RW
RW
RW
RW
RW
RW
RW
RW
RW