m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 85

• Manufacturer Part Number: m3819
• Description: Mitsubishi 8-bit Single-chip Microcomputer 740 Family / 38000 Series
• Manufacturer: Renesas Electronics Corporation.

2. APPLICATION
Fig. 2.1.3 Structure of Port Pi direction register (i = 4, 5, 6, 7, 8, A, B)
Table 2.1.1 Handling of unused pins
P0, P1, P2
P2
P7, P8, PA, PB
P4
P4
V
V
2.1.2 Handling of unused pins
EE
REF
4
0
5
–P2
, AV
Port Pi direction register
b7 b6 b5 b4 b3 b2 b1 b0
7
SS
, P4
Name of Pins/Ports
0
1
–P2
–P4
3
4
, P3, P9
, P4
6
, P4
7
, P5, P6,
Note :
B
0
1
2
3
4
5
6
7
Port Pi direction register (PiD) (i = 4, 5, 6, 7, 8, A, B)
Port Pi direction register
Port P4 direction register [Address:09
Ports P4
direction register function.
Open
• Set to the input mode and connect to V
• Set to the output mode and open at “L” or “H.”
Connect to V
Connect to V
Connect to V
Connect to V
3819 Group USER’S MANUAL
Name
0
and P4
5
are input ports. Accordingly, these bits do not have a
SS
CC
SS
SS
(GND).
(GND) through the resistor.
(GND) through the resistor.
[Address:09
through the resistor.
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
0 : Port Pi
1 : Port Pi
16
16
, 0B
0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
]
Handling
input mode
output mode
input mode
output mode
input mode
output mode
input mode
output mode
input mode
output mode
input mode
output mode
input mode
output mode
input mode
output mode
Function
16
, 0D
CC
16
or V
MITSUBISHI MICROCOMPUTER
, 0F
SS
16
, 11
(Note)
(Note)
through each resistor.
16
3819 Group
2.1 I/O port
, 15
At reset
16
, 17
0
0
0
0
0
0
0
0
16
R W
]
71