Table of Contents
Advertisement
14.1.2
Block Diagram
Figure 14.1 shows a block diagram of SCI3.
External
SCK
3
clock
Clock
TXD
RXD
Notation:
RSR:
Receive shift register
RDR:
Receive data register
TSR:
Transmit shift register
TDR:
Transmit data register
SMR:
Serial mode register
SCR3:
Serial control register 3
SSR:
Serial status register
BRR:
Bit rate register
BRC:
Bit rate counter
Baud rate generator
BRC
Transmit/receive
control circuit
TSR
RSR
Figure 14.1 SCI3 Block Diagram
Internal clock (ø/64, ø/16, ø/4, ø)
BRR
SMR
SCR3
SSR
TDR
RDR
Interrupt request
(TEI, TXI, RXI, ERI)
247
Advertisement
Table of Contents
