
RL78/G13
CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00
169
Sep 22, 2011
For example, figures 4-1 to 4-6 show block diagrams of port 0 for 128-pin products when PIOR = 00H.
Figure 4-1. Block Diagram of P00
Internal
bus
Output latch
(P00)
Alternate
function
P00/TI00
WRPU
RD
WRPORT
PU00
EVDD
P-ch
PU0
P0
WRPM
PM0
POM00
POM0
WRPOM
PM00
Selector
P0:
Port register 0
PU0:
Pull-up resistor option register 0
PM0:
Port mode register 0
POM0: Port output mode register 0
RD:
Read signal
WR
××: Write signal
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