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38D2 датащи(PDF) 22 Page - Renesas Technology Corp

номер детали 38D2
подробное описание детали  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PDF  136 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

38D2 датащи(HTML) 22 Page - Renesas Technology Corp

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Rev.3.02
Apr 10, 2008
Page 22 of 131
REJ03B0177-0302
38D2 Group
Fig. 15 Port block diagram (3)
(20) COM0-COM3
VL3
VL2
VL1
VSS
Gate input signal of
each gate depends
on the duty ratio
and bias values.
(17) Port P57
Serial I/O ready output
Data bus
Port latch
Serial I/O mode selection bit
Serial I/O enable bit
SRDY1 output enable bit
Direction
register
Pull-up control
Key-on wakeup interrupt input
Key input control
(19) Port P62
Data bus
Port latch
Direction
register
Xc oscillation enabled + Pull-up control
Xc oscillation enabled
Port P61
Oscillator
Xc oscillation enabled
(18) Port P61
Data bus
Port latch
Direction
register
Xc oscillation enabled
Sub-clock generation circuit input
Xc oscillation enabled + Pull-up control
(16) Port P56
Serial I/O synchronous clock
selection bit
Data bus
Serial I/O clock output
Serial I/O mode selection bit
Serial I/O enable bit
Port latch
Direction
register
Serial I/O enable bit
Pull-up control
Serial I/O clock input
Key-on wakeup interrupt input
Key input control
(15) Port P55
Data bus
Serial I/O enable bit
Transmit enable bit
Serial I/O output
P55/TxD1 P-channel output disable bit
Port latch
Direction
register
Pull-up control
Key-on wakeup interrupt input
Key input control



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