CHAPTER 4 PORT FUNCTIONS
User’s Manual U17446EJ3V1UD
55
Figure 4-5. Block Diagram of P31
P31/TI010/TO00/INTP2
WR
PU
RD
WR
PORT
WR
PM
PU31
Output latch
(P31)
PM31
Alternate
function
V
DD
P-ch
PU3
PM3
Internal bus
Selector
Alternate
function
P3
PU3:
Pull-up resistor option register 3
P3:
Port register 3
PM3:
Port mode register 3
RD:
Read signal
WR
××
: Write signal
Содержание 78K0S/KB1+
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