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HD6433937 Datasheet, PDF (506/521 Pages) Hitachi Semiconductor – Hardware Manual
SBY
VCC
P42
VSS
SCINV3
PDR42
PCR42
SCI32 module
TE32
TXD32
PDR4 : Port data register 4
PCR4 : Port control register 4
SCINV3 : Bit 3 of serial port control register (SPCR)
Figure C.4 (b) Port 4 Block Diagram (Pin P42)
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