E.8 Interrupt Latch (Irptl) & Interrupt Mask Imask) - Analog Devices ADSP-2106x SHARC User Manual

E Control/Status Registers
E.8 INTERRUPT LATCH (IRPTL) & INTERRUPT MASK (IMASK)
IRPTL and IMASK have the exact same bit positions, corresponding to the
ADSP-2106x interrupts in order of priority.
Vector Interrupt
Bit Address* Name
0 0x00
1 0x04 RSTI
2 0x08
3 0x0C SOVFI
4 0x10 TMZHI
5 0x14 VIRPTI
6 0x18 IRQ2I
7 0x1C IRQ1I
8 0x20 IRQ0I
9 0x24
10 0x28 SPR0I
11 0x2C SPR1I
12 0x30 SPT0I
13 0x34 SPT1I
14 0x38 LP2I
15 0x3C LP3I
16 0x40 EP0I
17 0x44 EP1I
18 0x48 EP2I
19 0x4C EP3I
20 0x50 LSRQI
21 0x54 CB7I
22 0x58 CB15I
23 0x5C TMZLI
24 0x60 FIXI
25 0x64 FLTOI
26 0x68 FLTUI
27 0x6C FLTII
28 0x70 SFT0I
29 0x74 SFT1I
30 0x78 SFT2I
31 0x7C SFT3I
* Offset from base address: 0x0002 0000 for interrupt vector table in internal
memory, 0x0040 0000 for interrupt vector table in external memory
** Non-maskable
E – 22
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Function
– reserved
Reset (read-only)**
– reserved
Status stack or loop stack overflow or PC stack full
Timer=0 (high priority option)
Vector Interrupt
IRQ2 asserted
IRQ1 asserted
IRQ0 asserted
– reserved
DMA Channel 0 – SPORT0 Receive
DMA Channel 1 – SPORT1 Receive (or Link Buffer 0)
DMA Channel 2 – SPORT0 Transmit
DMA Channel 3 – SPORT1 Transmit (or Link Buffer 1)
DMA Channel 4 – Link Buffer 2
DMA Channel 5 – Link Buffer 3
DMA Channel 6 – Ext. Port Buffer 0 (or Link Buffer 4)
DMA Channel 7 – Ext. Port Buffer 1 (or Link Buffer 5)
DMA Channel 8 – Ext. Port Buffer 2
DMA Channel 9 – Ext. Port Buffer 3
Link Port Service Request
Circular Buffer 7 overflow
Circular Buffer 15 overflow
Timer=0 (low priority option)
Fixed-point overflow
Floating-point overflow exception
Floating-point underflow exception
Floating-point invalid exception
User software interrupt 0
User software interrupt 1
User software interrupt 2
User software interrupt 3
HIGHEST PRIORITY
LOWEST PRIORITY