
Section 19 Serial Communication Interface with FIFO (SCIF)
Rev. 4.00 Sep. 14, 2005 Page 685 of 982
REJ09B0023-0400
Section 19 Serial Communication Interface with FIFO
(SCIF)
19.1 Overview
This LSI has a three-channel serial communication interface with FIFO (SCIF) that supports both
asynchronous and clock synchronous serial communication. It also has 16-stage FIFO registers for
both transmission and reception independently for each channel that enable this LSI to perform
efficient high-speed continuous communication.
19.1.1 Features
•
Asynchronous serial communication:
Serial data communication is performed by start-stop in character units. The SCIF can
communicate with a universal asynchronous receiver/transmitter (UART), an asynchronous
communication interface adapter (ACIA), or any other communications chip that employs
a standard asynchronous serial system. There are eight selectable serial data
communication formats.
Data length: 7 or 8 bits
Stop bit length: 1 or 2 bits
Parity: Even, odd, or none
Receive error detection: Parity, framing, and overrun errors
Break detection: Break is detected when a framing error is followed by at least one frame at
the space 0 level (low level). It is also detected by reading the RxD level directly from the
port data register when a framing error occurs.
•
Synchronous mode:
Serial data communication is synchronized with a clock signal. The SCIF can communicate
with other chips having a synchronous communication function. There is one serial data
communication format.
Data length: 8 bits
Receive error detection: Overrun errors
•
Full duplex communication: The transmitting and receiving sections are independent, so the
SCIF can transmit and receive simultaneously. Both sections use 16-stage FIFO buffering, so
high-speed continuous data transfer is possible in both the transmit and receive directions.
•
On-chip baud rate generator with selectable bit rates
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
Page 1035: ......
Page 1036: ...SH7641 Hardware Manual...