hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 266

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

10.1
The H8/3864 Series is provided with two serial communication interfaces, SCI3-1 and SCI3-2.
These two SCIs have identical functions. In this manual, the generic term SCI3 is used to refer to
both SCIs.
Serial communication interface 3 (SCI3) can carry out serial data communication in either
asynchronous or synchronous mode. It is also provided with a multiprocessor communication
function that enables serial data to be transferred among processors.
10.1.1
Features of SCI3 are listed below.
Data length
Stop bit length
Parity
Multiprocessor bit
Receive error detection
Break detection
Choice of asynchronous or synchronous mode for serial data communication
Asynchronous mode
Serial data communication is performed asynchronously, with synchronization provided
character by character. In this mode, serial data can be exchanged with standard
asynchronous communication LSIs such as a Universal Asynchronous
Receiver/Transmitter (UART) or Asynchronous Communication Interface Adapter
(ACIA). A multiprocessor communication function is also provided, enabling serial data
communication among processors.
There is a choice of 16 data transfer formats.
Overview
Features
Section 10 Serial Communication Interface
7, 8, 5 bits
1 or 2 bits
Even, odd, or none
“1” or “0”
Parity, overrun, and framing errors
Break detected by reading the RXD
framing error occurs
3x
pin level directly when a
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