UPD78F9234MC-5A4-A Datasheet, PDF (64/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

WRPU
CHAPTER 4 PORT FUNCTIONS
Figure 4-10. Block Diagram of P42
PU4
PU42
RD
WRPORT
WRPM
P4
Output latch
(P42)
PM4
PM42
Alternate
function
PU4: Pull-up resistor option register 4
P4: Port register 4
PM4: Port mode register 4
RD: Read signal
WR××: Write signal
VDD
P-ch
P42/TOH1
62
User’s Manual U17446EJ5V0UD