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Section 10 Serial Communication Interface
Rev. 6.00 Sep 12, 2006 page 277 of 526
REJ09B0326-0600
Section 10 Serial Communication Interface
10.1 Overview
The H8/3644 Group is provided with a two-channel serial communication interface (SCI). Table
10.1 summarizes the functions and features of the two SCI channels.
Table 10.1 Serial Communication Interface Functions
Channel Functions
Features
SCI1
Synchronous serial transfer
•
Choice of 8-bit or 16-bit data length
•
Continuous clock output
•
Choice of 8 internal clocks (
φ
/1024 to
φ
/2)
or external clock
•
Open drain output possible
•
Interrupt requested at completion of
transfer
SCI3
Synchronous serial transfer
•
8-bit data length
•
Send, receive, or simultaneous
send/receive
Asynchronous serial transfer
•
Multiprocessor communication
•
Choice of 7-bit or 8-bit data length
•
Choice of 1 or 2 stop bits
•
Parity addition
•
On-chip baud rate generator
•
Receive error detection
•
Break detection
•
Interrupt requested at completion of
transfer or error
10.2 SCI1
10.2.1 Overview
Serial communication interface 1 (SCI1) performs synchronous serial transfer of 8-bit or 16-bit
data. SSB (Synchronized Serial Bus) communication is also provided, enabling multiple ICs to be
controlled.
Summary of Contents for F-ZTAT H8/3642A Series
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Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...