UPD784938 Datasheet, PDF (118/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 6 PORT FUNCTIONS
Table 6-1. Port Functions
Port Name
Pin Names
Port 0
P00 to P07
Port 1
Port 2
Port 3
P10 to P17
P20 to P27
P30 to P37
Port 4
P40 to P47
Port 5
P50 to P57
Port 6
Port 7
Port 9
Port 10
P60 to P67
P70 to P77
P90 to P97
P100 to P107
Functions
• Input/output can be specified in 1-bit units.
• Can also operate as 4-bit real-time output ports
(P00 to P03, P04 to P07).
• Can drive a transistor.
• Input/output can be specified in 1-bit units.
• LED drive capability.
• Input port
• Input/output can be specified in 1-bit units.
• P32/SCK0 pin and P33/SO0 pin can be set in
N-ch open-drain mode.
• Input/output can be specified in 1-bit units.
• Can drive an LED.
• Input/output can be specified in 1-bit units.
• LED drive capability.
• Input/output can be specified in 1-bit units.
• Input/output can be specified in 1-bit units.
• Input/output can be specified in 1-bit units.
• Input/output can be specified in 1-bit units.
• P105/SCK3 pin and P107/SO3 pin can be set in
N-ch open-drain mode.
Software Pull-Up Specification
Input mode pins specified at once
6-bit unit (P22 to P27)
Input mode pins specified at once
—
Input mode pin specified at once
Input/Output
Ports
Input ports
Input/output ports
Output ports
Total
Total
8
72
0
80
Table 6-2. Number of Input/Output Ports
Input Mode
Software Pull-Up Resistor
6
64
—
70
Output Mode
Direct LED Drive
Direct Transistor Drive
—
—
24
0
0
8
24
8
118
Preliminary User’s Manual U13987EJ1V0UM00