CHAPTER 4 PORT FUNCTIONS
4.1 Port Functions
The µPD789426, 789436, 789446, and 789456 Subseries provide the ports shown in Figures 4-1 and 4-2,
enabling various methods of control.
Numerous other functions are provided that can be used in addition to the digital I/O port functions. For more
information on these additional functions, see CHAPTER 2 PIN FUNCTIONS.
Figure 4-1. Port Types (µPD789426, 789436 Subseries)
P60
P00
P03
Port 0
Port 1
Port 6
P65
P10
P11
P70
P72
P20
Port 7
Port 8
Port 2
P80
P81
P26
P30
P90
P97
Port 3
Port 5
P33
P50
Port 9
P53
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NEC [ NEC ]
