649
Table 16-13 SCI Interrupt Sources
Channel
Interrupt
Source
Description
DTC
Activation
DMAC
Activation
Priority*
0
ERI
Interrupt due to receive error (ORER, FER,
or PER)
Not possible Not possible High
RXI
Interrupt due to receive data full state
(RDRF)
Possible
Possible
TXI
Interrupt due to transmit data empty state
(TDRE)
Possible
Possible
TEI
Interrupt due to transmission end (TEND)
Not possible Not possible
1
ERI
Interrupt due to receive error (ORER, FER,
or PER)
Not possible Not possible
RXI
Interrupt due to receive data full state
(RDRF)
Possible
Possible
TXI
Interrupt due to transmit data empty state
(TDRE)
Possible
Possible
TEI
Interrupt due to transmission end (TEND)
Not possible Not possible
2
ERI
Interrupt due to receive error (ORER, FER,
or PER)
Not possible Not possible
RXI
Interrupt due to receive data full state
(RDRF)
Possible
Not possible
TXI
Interrupt due to transmit data empty state
(TDRE)
Possible
Not possible
TEI
Interrupt due to transmission end (TEND)
Not possible Not possible
3
ERI
Interrupt due to receive error (ORER, FER,
or PER)
Not possible Not possible
RXI
Interrupt due to receive data full state
(RDRF)
Possible
Not possible
TXI
Interrupt due to transmit data empty state
(TDRE)
Possible
Not possible
TEI
Interrupt due to transmission end (TEND)
Not possible Not possible
4
ERI
Interrupt due to receive error (ORER, FER,
or PER)
Not possible Not possible
RXI
Interrupt due to receive data full state
(RDRF)
Possible
Not possible
TXI
Interrupt due to transmit data empty state
(TDRE)
Possible
Not possible
TEI
Interrupt due to transmission end (TEND)
Not possible Not possible Low
Note: * This table shows the initial state immediately after a reset. Relative priorities among
channels can be changed by means of the interrupt controller.