Analog Devices SHARC ADSP-21368 Hardware Reference Manual page 851

Table B-6. IMASK Register Bit Descriptions (Cont'd)
Bit Name
20 CB7I
21 CB15I
22 TMZLI
23 FIXI
24 FLTOI
25 FLTUI
26 FLTII
27 EMULI
28 SFT0I
29 SFT1I
30 SFT2I
31 SFT3I
ADSP-21368 SHARC Processor Hardware Reference
Description
DAG1 Circular Buffer 7 Overflow Interrupt. Unmasks the CB7I inter-
rupt (if set, = 1), or masks the CB7I interrupt (if cleared, = 0). A circu-
lar buffer overflow occurs when the DAG circular buffering operation
increments the I register past the end of the buffer.
DAG2 Circular Buffer 15 Overflow Interrupt. Unmasks the CB15I
interrupt (if set, = 1), or masks the CB15I interrupt (if cleared, = 0). A
circular buffer overflow occurs when the DAG circular buffering opera-
tion increments the I register past the end of the buffer.
Timer Expired (Low Priority) Interrupt. Unmasks the TMZLI inter-
rupt (if set, = 1), or masks the TMZLI interrupt (if cleared, = 0).
more information, see "TMZHI" on page B-19.
Fixed-Point Overflow Interrupt. Unmasks the FIXI interrupt (if set, =
1), or masks the FIXI interrupt (if cleared, = 0).
Floating-Point Overflow Interrupt. Unmasks the FLTOI interrupt (if
set, = 1), or masks the FLTOI interrupt (if cleared, = 0).
Floating-Point Underflow Interrupt. Unmasks the FLTUI interrupt (if
set, = 1), or masks the FLTUI interrupt (if cleared, = 0).
Floating-Point Invalid Operation Interrupt. Unmasks the FLTII inter-
rupt (if set, = 1), or masks the FLTII interrupt (if cleared, = 0).
Emulator (Lower Priority) Interrupt. Unmasks the EMULI interrupt
(if set, = 1), or masks the EMULI interrupt (if cleared, = 0). An EMULI
occurs on reset and when an external device asserts the EMU pin.
This interrupt has a lower priority than EMUI, but higher
priority than software interrupts.
User Software Interrupt 0. Unmasks the SFT0I interrupt (if set, = 1),
or masks the SFT0I interrupt (if cleared, = 0). An SFT0I occurs when a
program sets (= 1) this bit.
User Software Interrupt 1. Unmasks the SFT1I interrupt (if set, = 1),
or masks the SFT1I interrupt (if cleared, = 0).
User Software Interrupt 2. Unmasks the SFT2I interrupt (if set, = 1),
or masks the SFT2I interrupt (if cleared, = 0).
User Software Interrupt 3. Unmasks the SFT3I interrupt (if set, = 1),
or masks the SFT3I interrupt (if cleared, = 0).
Interrupts
For
B-21