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UPD780138 Datasheet(PDF) 99 Page - NEC

Part # UPD780138
Description  8-Bit Single-Chip Microcontrollers
Download  558 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD780138 Datasheet(HTML) 99 Page - NEC

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CHAPTER 4 PORT FUNCTIONS
User’s Manual U16228EJ2V0UD
99
Figure 4-8. Block Diagram of P12 and P15
P12/SO10
P15/TOH0
WRPU
RD
WRPORT
WRPM
PU12, PU15
Output latch
(P12, P15)
PM12, PM15
Alternate
function
EVDD
P-ch
PU1
PM1
PU1:
Pull-up resistor option register 1
PM1:
Port mode register 1
RD:
Read signal
WR
××: Write signal


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