NEC uPD78056Y User Manual

Page 147

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147

CHAPTER 6 PORT FUNCTIONS

P-ch

WR

PM

WR

PORT

RD

WR

PUO

V

DD

Selector

PUO7

Output Latch
(P71 and P72)

PM71, PM72

Internal bus

Alternate Function

P71/SO2/TxD,
P72/SCK2/ASCK

Figure 6-16. P71 and P72 Block Diagram

PUO : Pull-up resistor option register

PM

: Port mode register

RD

: Port 7 read signal

WR : Port 7 write signal

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This manual is related to the following products:

PD78056Y, PD78055Y, PD78058, PD78052Y, PD78P058Y, PD78P054, PD78054Y, uPD78054Y, PD78056, PD78058Y, uPD78058Y, uPD78052, uPD78055Y, PD78053Y, uPD78052Y, uPD78054, uPD78P058, uPD78053, PD78052(A), uPD78053Y, uPD78056, PD78055, uPD78058, uPD78P054, PD78052, PD78053(A), PD78053, PD78054(A)

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