M16C62P_06 Datasheet, PDF (279/421 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

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