CHAPTER 9 I/O PORT
Block Diagram of Port A
PDR read
PDR write
At bit operation instruction
DDR read
DDR write
ILSR2 read
ILSR2 write
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Figure 9.8-1 Block Diagram of Port A
0
1
PDR
DDR
Stop, watch (SPL=1)
ILSR2
LCD output
LCD enable
Hysteresis
Automotive
Pin