HD6433937 Datasheet, PDF (253/521 Pages) Hitachi Semiconductor – Hardware Manual

Section 10 Serial Communication Interface
10.1 Overview
The H8/3937 Series and H8/3937R Series are provided with two serial communication interface
(SCI) channels plus one SCI channel for on-chip FLEX™ decoder interfacing.
The functions of the three SCI channels are summarized in table 10-1.
Table 10-1 Overview of SCI Functions
SCI Name Functions
Features
SCI1
(Internal
function)
Synchronous serial transfer functions
• Choice of transfer data length (8 or 16
bits)
• Continuous clock output function
• Choice of 8 internal clocks (ø/1024 to
ø/4, ø_W/4) or external clock
• Interrupt generated on completion of
transfer
SCI31,
SCI32
Synchronous serial transfer functions
• On-chip baud rate generator
• 8-bit transfer data length
• Receive error detection
• Transmission/reception/simultaneous ^{• Break detection}
transmission and reception
• Interrupt generated on completion of
Asynchronous serial transfer functions
transfer or in case of error
• Multiprocessor communication function
• Choice of transfer data length (5 or 7 or 8
bits)
• Choice of stop bit length (1 or 2 bits)
• Parity addition function
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