UPD784938 Datasheet, PDF (171/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 6 PORT FUNCTIONS
Figure 6-52. P64 and P65 (Port 6) Block Diagram
WRPUOL
RDPUOL
Pull-up resistor option register L
PUOL6
Internal
bus
WRPM6
RDPM6
Port 6 mode register
PM64
(PM65)
External expansion mode
WRP6
RDP6
RD signal (WR signal)
Output latch
P64
(P65)
Selector
VDD
P64
(P65)
Preliminary User’s Manual U13987EJ1V0UM00
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