HD64F2149 Datasheet, PDF (285/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Pin
PB5/D5/WUE5
PB4/D4/WUE4
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
the operating mode, bit PB5DDR, and bit ABW in WSCR.
Operating
mode
Modes 1, 2, 3
(EXPE = 1)
Modes 2, 3
(EXPE = 0)
ABW
0
1
—
PB5DDR
—
0
1
0
1
Pin function
D5
I/O pin
PB5
PB5
PB5
PB5
input pin output pin input pin output pin
WUE5 input pin
Except when used as a data bus pin, this pin can always be used as the
WUE5 input pin.
The pin function is switched as shown below according to the combination of
the operating mode, bit PB4DDR, and bit ABW in WSCR.
Operating
mode
Modes 1, 2, 3
(EXPE = 1)
Modes 2, 3
(EXPE = 0)
ABW
0
1
—
PB4DDR
—
0
1
0
1
Pin function
D4
I/O pin
PB4
PB4
PB4
PB4
input pin output pin input pin output pin
WUE4 input pin
Except when used as a data bus pin, this pin can always be used as the
WUE4 input pin.
251