
RL78/G13
CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00
213
Sep 22, 2011
For example, figures 4-34 to 4-38 show block diagrams of port 7 for 128-pin products when PIOR = 00H.
Figure 4-34. Block Diagram of P70
P70/KR0/SCK21/SCL21
WRPU
RD
WRPORT
WRPM
PU70
PM70
EVDD
P-ch
PU7
PM7
P7
Output latch
(P70)
Selector
Alternate
function
Alternate
function
Internal
bus
P7:
Port register 7
PU7:
Pull-up resistor option register 7
PM7:
Port mode register 7
RD:
Read signal
WR
××: Write signal
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