M16C26A Datasheet, PDF (241/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
16. Programmable I/O Ports
Port Pi register (i=6 to 8 and 10) ⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
P6 to P8
P10
Address
03EC16, 03ED16, 03F016
03F416
After reset
Indeterminate
Indeterminate
Bit symbol
Pi_0
Pi_1
Pi_2
Pi_3
Pi_4
Pi_5
Pi_6
Pi_7
Bit name
Port Pi0 bit
Port Pi1 bit
Port Pi2 bit
Port Pi3 bit
Port Pi4 bit
Port Pi5 bit
Port Pi6 bit
Port Pi7 bit
Function
RW
The pin level on any I/O port which is RW
set for input mode can be read by
reading the corresponding bit in this
RW
register.
RW
The pin level on any I/O port which is _RW
set for output mode can be controlled
by writing to the corresponding bit in ^RW
this register
RW
0 : “L” level
1 : “H” level ⁽¹⁾
RW
(i = 6 to 8 and 10)
RW
NOTE:
1. Ports must be enabled using the PACR register.
In 48-pin package, set PACR2, PACR1, PACR0 to "1002"
In 42-pin package, set PACR2, PACR1, PACR0 to "0012"
Port P1 register ⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
P1
Address
03E116
After reset
Indeterminate
Bit symbol
Bit name
Function
RW
(b4-b0)
Nothing is assigned. In an attempt to write to this bit, write “0”.
The value, if read, turns out to be indeterminate.
The pin level on any I/O port which is
P1_5
Port P15 bit
set for input mode can be read by
RW
reading the corresponding bit in this
register.
P1_6
Port P16 bit
The pin level on any I/O port which is
set for output mode can be controlled
RW
by writing to the corresponding bit in
this register
P1_7
Port P17 bit
0 : “L” level
RW
1 : “H” level
NOTE:
1. Ports must be enabled using the PACR register.
In 48-pin package, set PACR2, PACR1, PACR0 to "1002"
In 42-pin package, set PACR2, PACR1, PACR0 to "0012"
Port P9 register ⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
P9
Address
03F116
After reset
Indeterminate
Bit symbol
Bit name
P9_0
Port P90 bit
P9_1
Port P91 bit
P9_2
Port P92 bit
P9_3
Port P93 bit
Function
RW
The pin level on any I/O port which is
set for input mode can be read by
RW
reading the corresponding bit in this
register.
The pin level on any I/O port which is ^RW
set for output mode can be controlled
by writing to the corresponding bit in
this register
RW
0 : “L” level
1 : “H” level
RW
(b7-b4)
Nothing is assigned. In an attempt to write to this bit, write “0”.
The value, if read, turns out to be indeterminate.
NOTE:
1. Ports must be enabled using the PACR register.
In 48-pin package, set PACR2, PACR1, PACR0 to "1002"
In 42-pin package, set PACR2, PACR1, PACR0 to "0012"
Figure 16.2.1. P1, P6, P7, P8, P9, and P10 Registers
Rev. 2.00 Feb.15, 2007 ^{page 224} of 329
REJ09B0202-0200