H8SX1663 datasheet(789/1158 Pages) RENESAS

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Section 15 Serial Communication Interface (SCI, IrDA, CRC)

Rev.1.00 Jun. 07, 2006 Page 737 of 1102

REJ09B0294-0100

Table 15.15 SCI Interrupt Sources (SCI_5 and SCI_6)

Name

Interrupt Source

Interrupt Flag

DTC Activation

DMAC Activation

Priority

RXI

Receive data full

RDRF

Not possible

Possible

High

TXI

Transmit data empty TDRE

Not possible

Possible

ERI

Receive error

ORER, FER, or PER

Not possible

TEI

Transmit end

TEND

Not possible

Low

15.9.2

Interrupts in Smart Card Interface Mode

Table 15.16 shows the interrupt sources in smart card interface mode. A transmit end (TEI)

interrupt request cannot be used in this mode.

Note that the priority order for interrupts is different between the group of SCI_0, 1, 2, and 4 and

the group of SCI_5 and SCI_6.

Table 15.16 SCI Interrupt Sources (SCI_0, 1, 2, and 4)

Name

Interrupt Source

Interrupt Flag

DTC Activation

DMAC Activation

Priority

ERI

Receive error or error

signal detection

ORER, PER, or ERS

Not possible

High

RXI

Receive data full

RDRF

Possible

TXI

Transmit data empty

TEND

Possible

Low

Table 15.17 SCI Interrupt Sources (SCI_5 and SCI_6)

Name

Interrupt Source

Interrupt Flag

DTC Activation

DMAC Activation

Priority

RXI

Receive data full

RDRF

Not possible

Possible

High

TXI

Transmit data empty

TDRE

Not possible

Possible

ERI

Receive error or error

signal detection

ORER, PER, or ERS

Not possible

Low

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