UPD789304 Datasheet, PDF (15/64 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD789304, 789306, 789314, 789316
5. PERIPHERAL HARDWARE FUNCTIONS
5.1 Ports
The I/O ports are listed below.
• CMOS I/O:
19
• N-ch open-drain I/O:
4
Table 5-1. Port Functions
Port Name
Port 0
Pin Name
P00 to P03
Port 1
P10 to P13
Port 2
P20 to P26
Port 3
P30 to P33
Port 5
P50 to P53
Function
I/O port. Input/output can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be specified by software.
I/O port. Input/output can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be specified by software.
I/O port. Input/output can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be specified by software.
I/O port. Input/output can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be specified by software.
I/O port. Input/output can be specified in 1-bit units.
An on-chip pull-up resistor can be specified by the mask option.
Data Sheet U14384EJ1V0DS
15