Texas Instruments TMS320C2XX User Manual
Page 441
Register Descriptions
A-6
’C2xx Interrupt Flag Register (IFR) — Except ’C209 — Data-Memory Address 0006h
15
6
5
4
3
2
1
0
ЙЙЙЙЙЙЙЙЙ
ЙЙЙЙЙЙЙЙЙ
0
0
0
0
0
0
0
Reserved
†
TXRXINT
XINT
RINT
TINT
INT2/INT3
HOLD/INT1
R/W1C
Neither INT2 nor INT3 pending
INT2 and/or INT3 pending
0
1
Interrupt TXRXINT not pending
Interrupt TXRXINT pending
0
1
Interrupt XINT not pending
Interrupt XINT pending
0
1
Interrupt RINT not pending
Interrupt RINT pending
0
1
Interrupt TINT not pending
Interrupt TINT pending
0
1
0
1
HOLD/INT1 not pending
HOLD/INT1 pending
R/W1C
R/W1C
R/W1C
R/W1C
R/W1C
Receive interrupt flag
Transmit interrupt flag
Transmit/receive interrupt flag
HOLD/INT1 flag
Timer interrupt flag
INT2/INT3 flag
† These reserved bits are always read as 0s. Writes have no effect.
Interrupt Flag Register (IFR) — ’C209 — Data-Memory Address 0006h
15
4
3
2
1
0
ЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙ
ЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙ
0
0
0
0
0
Reserved
†
TINT
INT3
INT2
INT1
R/W1C
R/W1C
INT2 not pending
INT2 pending
0
1
Interrupt TINT not pending
Interrupt TINT pending
0
1
INT3 not pending
INT3 pending
0
1
0
1
INT1 not pending
INT1 pending
R/W1C
R/W1C
INT1 flag
Timer interrupt flag
INT2 flag
INT3 flag
† These reserved bits are always read as 0s. Writes have no effect.