HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 421

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

12.4
The SCI has four interrupt request sources: transmit-end interrupt (TEI), receive-error (ERI),
receive-data-full (RXI), and transmit-data-empty interrupt (TXI). Table 12.12 lists the interrupt
sources and indicates their priority. These interrupts can be enabled or disabled by the TIE, RIE,
and TEIE bits in SCR. Each interrupt request is sent separately to the interrupt controller.
A TXI interrupt is requested when the TDRE flag is set to 1 in SSR. A TEI interrupt is requested
when the TEND flag is set to 1 in SSR.
An RXI interrupt is requested when the RDRF flag is set to 1 in SSR. An ERI interrupt is
requested when the ORER, PER, or FER flag is set to 1 in SSR.
Table 12.12 SCI Interrupt Sources
Interrupt Source
ERI
RXI
TXI
TEI
SCI Interrupts
Description
Receive error (ORER, FER, or PER)
Receive data register full (RDRF)
Transmit data register empty (TDRE)
Transmit end (TEND)
Rev.4.00 Aug. 20, 2007 Page 377 of 638
12. Serial Communication Interface
REJ09B0395-0400
Priority
High
Low