HD6433640 HITACHI [Hitachi Semiconductor], HD6433640 Datasheet - Page 301

• Manufacturer Part Number: HD6433640
• Description: H8/3644 Series Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Block Diagram
Figure 10.6 shows a block diagram of SCI3.
Legend:
RSR:
RDR:
TSR:
TDR:
SMR:
SCR3:
SSR:
BRR:
BRC:
SCK
TXD
RXD
3
Clock
Receive shift register
Receive data register
Transmit shift register
Transmit data register
Serial mode register
Serial control register 3
Serial status register
Bit rate register
Bit rate counter
External
clock
Baud rate generator
Transmit/receive
control circuit
RSR
TSR
Figure 10.6 SCI3 Block Diagram
BRC
Internal clock (ø/64, ø/16, ø/4, ø)
SCR3
SMR
BRR
RDR
SSR
TDR
Interrupt request
(TEI, TXI, RXI, ERI)
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