Datasheet

CHAPTER 4 PORT FUNCTIONS
User’s Manual U18698EJ1V0UD
80
Figure 4-3. Block Diagram of P13
P13/TxD0/KR4/<TxD6>
WR
PU
RD
WR
PORT
WR PM
PU13
PM13
V DD
P-ch
PU1
PM1
P1
PF13
PF1
WR PF
Internal bus
Output latch
(P13)
Serial interface UART0
Serial interface UART6
Selector
Selector
Alternate
function
P1: Port register 1
PU1: Pull-up resistor option register 1
PM1: Port mode register 1
RD: Read signal
WR××: Write signal