UPD784938 Datasheet, PDF (147/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 6 PORT FUNCTIONS
Figure 6-29. P33 (Port 3) Block Diagram
WRPUOL ^{Pull-up resistor option register L}
RDPUOL
PUOL3
WRPM3
RDPM3
Port 3 mode register
PM33
Internal
bus
WRPMC3
RDPMC3
Port 3 mode control register _{N-ch open-drain specification}
(CSIM MOD bit)
PMC33
WRP3
SO0 output
Output latch
P33
Selector
RDP3
VDD
VDD
P33
Preliminary User’s Manual U13987EJ1V0UM00
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