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HD6433937 Datasheet, PDF (513/521 Pages) Hitachi Semiconductor – Hardware Manual
C.9 Block Diagram of Port 9
SBY
VCC
P9n
VSS
PDR9n
PCR9n
PDR9: Port data register 9
PCR9: Port control register 9
n = 3 to 0
Figure C-9 Port 9 Block Diagram
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