NEC uPD78056Y User Manual

Page 140

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140

CHAPTER 6 PORT FUNCTIONS

P-ch

WR

PM

WR

PORT

RD

WR

PUO

V

DD

Selector

PUO2

Output Latch
(P22 and P27)

PM22, PM27

Internal bus

Alternate Function

P22/SCK1,
P27/SCK0/SCL

Figure 6-8. P22 and P27 Block Diagram

PUO : Pull-up resistor option register

PM

: Port mode register

RD

: Port 2 read signal

WR : Port 2 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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