HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 450

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

13.1.2 Block Diagram
Figure 13-1 shows a block diagram of the SCI.
SCK
RxD
TxD
Legend
RSR:
RDR:
TSR:
TDR:
SMR:
SCR:
SSR:
BRR:
Receive shift register
Receive data register
Transmit shift register
Transmit data register
Serial mode register
Serial control register
Serial status register
Bit rate register
RDR
RSR
Figure 13-1 SCI Block Diagram
Parity generate
Parity check
TDR
TSR
Module data bus
439
receive control
Transmit/
SMR
SCR
SSR
External clock
Clock
Baud rate
generator
BRR
TEI
TXI
RXI
ERI
ø
ø/4
ø/16
ø/64
Internal
data bus