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CHAPTER 4 PORT FUNCTIONS
User’s Manual U15798EJ2V0UD
Figure 4-9. Block Diagram of P32 to P34
PU: Pull-up resistor option register
PM: Port mode register
RD: Port 3 read signal
WR: Port 3 write signal
Internal bus
V
DD0
P-ch
P32/TI51/TO51,
P33/TI50/TO50,
P34/TI01/TO00
WR
PU
RD
WR
PORT
WR
PM
PU32 to PU34
Alternate
function
Output latch
(P32 to P34)
PM32 to PM34
Selector
Alternate
function
Содержание mPD780344 Series
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