CHAPTER 5 PORT FUNCTIONS
User’s Manual U15109EJ3V0UD
181
(3) Block diagram (port 13)
Figure 5-17. Block Diagram of P130 to P133
WR
PM
WR
PORT
RD
P130
P131
P132
P133
Selector
Output latch
(P13n)
PM13n
PM13
Internal bus
Remarks 1.
PM13: Port 13 mode register
RD:
Port 13 read signal
WR:
Port 13 write signal
2.
n = 0 to 3