Analog Devices SHARC ADSP-21368 - Page 847

ADSP-21368 SHARC Processor Hardware Reference B-17
Interrupts
17 P14I (DPI) Programmable Interrupt 14. Indicates if a DPI interrupt is latched
and is pending (if set, = 1), or no DPI interrupt is pending (if cleared,
= 0).
18 P15I
(MTMDMA)
Programmable Interrupt 15 (MTMDMA Interrupt).
19 P16I (SP6I) Programmable Interrupt 16. Indicates if an SP6I interrupt is latched
and is pending (if set, = 1), or no SP6I is pending (if cleared, = 0). An
SP6I interrupt occurs two cycles after the last bit of an input/output
serial word is latched into/from RXSP6A/TXSP6A,
RXSP6B/TXSP6B.
20 CB7I DAG1 Circular Buffer 7 Overflow Interrupt. Indicates if a CB7I is
latched and is pending (if set, = 1), or no CB7I interrupt is pending
(if cleared, = 0). A circular buffer overflow occurs when the DAG cir-
cular buffering operation increments the I register past the end of the
buffer.
21 CB15I DAG2 Circular Buffer 15 Overflow Interrupt. Indicates if a CB15I
is latched and is pending (if set, = 1), or no CB15I is pending (if
cleared, = 0). A circular buffer overflow occurs when the DAG circu-
lar buffering operation increments the I register past the end of the
buffer.
22 TMZLI Timer Expired (Low Priority) Interrupt. Indicates if a TMZLI is
latched and is pending (if set, = 1), or no TMZLI is pending (if
cleared, = 0). For more information, see “TMZHI” on page B-15.
23 FIXI Fixed-Point Overflow Interrupt. Indicates if a FIXI is latched and is
pending (if set, = 1), or no FIXI is pending (if cleared, = 0).
24 FLTOI Floating-Point Overflow Interrupt. Indicates if a FLTOI is latched
and is pending (if set, = 1), or no FLTOI is pending (if cleared, = 0).
25 FLTUI Floating-Point Underflow Interrupt. Indicates if a FLTUI is latched
and is pending (if set, = 1), or no FLTUI is pending (if cleared, = 0).
26 FLTII Floating-Point Invalid Operation Interrupt. This bit
indicates if a FLTII is latched and is pending (if set, = 1), or no FLTII
is pending (if cleared, = 0).
Table B-5. Interrupt Latch (IRPTL) Register Bit Descriptions (Cont’d)
Bit Name Description