RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 206
Sep 22, 2011
Figure 4-30. Block Diagram of P53, P54
P54/SCK31/SCL31
WR
PU
RD
WR
PORT
PU53, PU54
EVDD
P-ch
PU5
P5
WRPM
PM5
POM53, POM54
POM5
WRPOM
PM53, PM54
CMOS
TTL
PIM5
PIM53, PIM54
WRPIM
Output latch
(P53, P54)
Selector
Alternate
function
Alternate
function
Internal bus
P53/SI31/SDA31,
P5: Port register 5
PU5: Pull-up resistor option register 5
PM5: Port mode register 5
PIM5: Port input mode register 5
POM5: Port output mode register 5
RD: Read signal
WR××: Write signal