RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 178
Sep 22, 2011
Figure 4-8. Block Diagram of P11
P11/SI00/RxD0/
SDA00/TOOLRxD
WR
PU
RD
WR
PORT
PU11
EV
DD
P-ch
PU1
P1
WR
PM
PM1
POM11
POM1
WR
POM
PM11
CMOS
TTL
PIM1
PIM11
WR
PIM
Output latch
(P11)
Selector
Alternate
function
Alternate
function
Internal bus
P1: Port register 1
PU1: Pull-up resistor option register 1
PM1: Port mode register 1
PIM1: Port input mode register 1
POM1: Port output mode register 1
RD: Read signal
WR××: Write signal