Renesas M16C Series User Manual page 131

M30240 Group
Figure 1.108: Programmable I/O Ports (3)
Port Pi direction register
b7 b6 b5
Port P8 direction register
b7 b6 b5
Figure 1.109: Direction register
Rev.1.00 Sep 24, 2003 Page 113 of 360
BYTE
BYTE Input
CNVss
CNVss Input
RESET
RESET Input
Note 1: symbolizes parasitic diode.
Note 2: A parasititc diode on the Vcc side is added to the mask ROM version.
Do not apply a voltage higher than Vcc to each pin.
Symbol
b4 b3 b2 b1 b0
PDi (i = 0 to 3,6,7,10)
Bit symbol
PDi_0 Port Pi
0
PDi_1 Port Pi
1
PDi_2 Port Pi
2
PDi_3 Port Pi
3
PDi_4 Port Pi
4
PDi_5 Port Pi
5
PDi_6 Port Pi
6
PDi_7 Port Pi
7
b4 b3 b2 b1 b0
Symbol
PD8
Bit symbol
PD8_0 Port P8
PD8_1 Port P8
PD8_2 Port P8
PD8_3 Port P8
PD8_4 Port P8
Nothing is assigned.
This bit can either be set nor reset. When read, its content is indeterminate.
PD8_6 Port P8
PD8_7 Port P8
(Note 2)
(Note 2)
(Note 1)
Address
03E2 , 03E3 , 03E6 , 03E7
16 16 16
03EE 03EF , 03F6
16, 16 16
Bit name Function
direction register
0 : Input mode
direction register
(Functions as an input port)
direction register
1 : Output mode
(Functions as an output port)
direction register
(i = 0 to 3,6,7,10)
direction register
direction register
direction register
direction register
Address
03F2
16
Bit name Function
direction register
0
0 : Input mode
direction register
1
(Functions as an input port)
direction register
2 1 : Output mode
(Functions as an output port)
direction register
3
direction register
4
0 : Input mode
direction register
6
(Functions as an input port)
1 : Output mode
direction register
7 (Functions as an output port)
Programmable I/O Ports
(Note 1)
(Note 2)
(Note 1)
When reset
00
16
,
16
R W
When reset
00X00000
2
R W