Block Diagram; Figure 12.1 Sci Block Diagram - Hitachi H8/3062 Hardware Manual

Single-chip microcomputer h8/3062 series; h8/3062b series; h8/3062f-ztat series; h8/3064f-ztat series
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12.1.2

Block Diagram

Figure 12.1 shows a block diagram of the SCI.
RDR
RSR
RxD
TxD
SCK
Legend:
RSR
: Receive shift register
RDR
: Receive data register
TSR
: Transmit shift register
TDR
: Transmit data register
SMR
: Serial mode register
SCR
: Serial control register
SSR
: Serial status register
BRR
: Bit rate register
SCMR : Smart card mode register
Module data bus
TDR
SSR
SCR
SMR
TSR
SCMR
Transmit/receive
control
Parity generate
Parity check

Figure 12.1 SCI Block Diagram

BRR
Baud rate
generator
Clock
External clock
Internal data bus
φ
φ/ 4
φ/16
φ/64
T E I
T X I
R X I
E R I
363

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