
RL78/G13
CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00
223
Sep 22, 2011
For example, figures 4-42 to 4-45 show block diagrams of port 9.
Figure 4-42. Block Diagram of P90 to P94
P90 to P94
WRPU
RD
WRPORT
WRPM
EVDD
P-ch
PU9
PM9
P9
PM90 to PM94
PU90 to PU94
Output latch
(P90 to P94)
Selector
Internal
bus
P9:
Port register 9
PU9:
Pull-up resistor option register 9
PM9:
Port mode register 9
RD:
Read signal
WR
××: Write signal