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UPD178024 Datasheet(PDF) 25 Page - NEC

Part # UPD178024
Description  8-BIT SINGLE-CHIP MICROCONTROLLER
PDF  56 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD178024 Datasheet(HTML) 25 Page - NEC

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25
µPD178023, 178024
Data Sheet U14126EJ1V0DS00
Figure 3-9. Block Diagram of Serial Interface (SIO3)
Figure 3-10. Block Diagram of Serial Interface (UART0)
Internal bus
8
Interrupt request
signal generation
circuit
Selector
Serial clock
counter
Serial clock
control circuit
Serial I/O shift
registe 3 (SIO3)
SI3/P70
SO3/P71
P71 output latch
PM71
PM72
SCK3/P72
INTCSI3
fX/2
4
fX/2
5
fX/2
6
P72 output latch
Internal bus
Receive buffer
register 0
(RXB0)
RXD0/P74
TXD0/P75
P75 output latch
PM75
Receive shift
register 0
(RX0)
PE0
FE0 OVE0
Reception
control circuit
(parity check)
Transmit shift
register 0
(TXS0)
Transmission
control circuit
(parity append)
INTSER0
INTST0
Baud rate
generator
fX/2-fX/28
TXE0 RXE0 PS01 PS00 CL0
SL0 ISRM0
0
INTSR0
Asynchronous serial interface
mode register 0 (ASIM0)
Asynchronous serial interface
status register 0 (ASIS0)



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