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M16C/62P Group (M16C/62P, M16C/62PT)
Port P14 Control Register (128-Pin Package)
b7
b6
b5
b4
b3
Pull-Up Control Register 3 (128-Pin Package)
b7
b6
b5
b4
b3
NOTES:
1. The pin for which 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 Register and PUR3 Register
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
b2
b1
b0
Symbol
PC14
Bit Symbol
P140
Port P14_0 Bit
P141
Port P14_1 Bit
Nothing is assigned. When write, set to "0".
(b3-b2)
When read, their contents are indeterminate.
PD140
Port P14_0 Direction Bit
PD141
Port P14_1 Direction Bit
Nothing is assigned. When write, set to "0".
(b7-b6)
When read, their contents are indeterminate.
b2
b1
b0
Symbol
PUR3
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
PU37
P11 to P14 Enabling Bit
page 237
f o
3
6
4
Address
03DEh
Bit Name
The pin level on any I/O port which is
set for input mode can be read by
reading the corresponding bit in this
register.
The pin level on any I/O port which is
set for output mode can be controlled
by writing to the corresponding bit in
this register
0 : "L" level
1 : "H" level
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
Address
After Reset
03DFh
Bit Name
0 : Not pulled high
1 : Pulled high
0 : Unusable
1 : Usable
21. Programmable I/O Ports
After Reset
XX00XXXXb
Function
00h
Function
(1)
(2)
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
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