UPD784938 Datasheet, PDF (210/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 7 REAL-TIME OUTPUT FUNCTION
Figure 7-7. Real-Time Output Function Control Register Settings
7
6
5
4
3
2
1
0
RTPC 0
0
0
0
0
0
0
0
P00 to P03 used as real-time output port
Data transfer to output latch from P0L
by INTP0 disabled
P04 to P07 used as normal output port
4-bit separate real-time output ports selected
Figure 7-8. Real-Time Output Function Setting Procedure
Real-time output port
Set initial value in P0
output latch
Set next value to be output
in P0L
Set real-time output port
control register (RTPC)
Set timer/event counter 1
Timer start
INTC10 interrupt
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Preliminary User’s Manual U13987EJ1V0UM00