Chapter 4 Port Functions; Port Functions - NEC mPD780852 Series Preliminary User's Manual

8-bit single-chip microcontrollers
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4.1 Port Functions

The µ PD780852 Subseries are provided with five input port pins, sixteen output port pins, and thirty-five input/output
port pins. Figure 4-1 shows the port configuration. Every port can be manipulated in 1-bit or 8-bit units controlled
in various ways. Moreover, the port pins can also serve as I/O pins of the internal hardware.
Port 4
Port 5
Port 6
Port 8
Port 9

CHAPTER 4 PORT FUNCTIONS

Figure 4-1. Port Types
P40
P44
P50
P54
P60
P61
P81
P87
P90
P97
Preliminary User's Manual U14581EJ3V0UM00
P00
Port 0
P07
P10
Port 1
P14
P20
Port 2
P27
P30
Port 3
P37
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