CHAPTER 5 PORT FUNCTIONS
Preliminary User’s Manual U17260EJ3V1UD
105
Figure 5-5. Block Diagram of P03 and P05
(a)
µ
PD78F0531, 78F0532, 78F0533
P03, P05
WR
PU
RD
WR
PORT
WR
PM
PU03, PU05
PM03, PM05
EV
DD
P-ch
PU0
PM0
P0
Internal bus
Output latch
(P03, P05)
Selector
(b)
µ
PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D
P03/SI11,
P05/SSI11/TI001
WR
PU
RD
WR
PORT
WR
PM
PU03, PU05
PM03, PM05
EV
DD
P-ch
PU0
PM0
P0
Internal bus
Alternate function
Output latch
(P03, P05)
Selector
P0:
Port register 0
PU0:
Pull-up resistor option register 0
PM0:
Port mode register 0
RD: Read
signal
WR
××
: Write
signal