Hitachi H8/500 Series - Block Diagram; Block Diagram of Serial Communication Interface

14.1.2 Block Diagram
Figure 14-1 shows a block diagram of serial communication interface.
RXD
TXD
SCK
RDR:
RSR:
TDR:
TSR:
SSR:
SCR:
SMR:
BRR:
Receive Data Register
Receive Shift Register
Transmit Data Register
Transmit Shift Register
Serial Status Register
Serial Control Register
Serial Mode Register
Bit Rate Register
RDR SSRTDR
SCR
SMR
BRR
Baud-rate
generator
TSRRSR
Communication
control
Parity generator
Parity check Clock External clock
Module data bus
Internal
data bus
Internal clock
source
TXI
RXI
ERI
Interrupt signals
ø
ø/4
ø/16
ø/64
Bus interface
Figure 14-1 Block Diagram of Serial Communication Interface
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