D7 

D6 

D5 

D4 

D3 

D2 

D1 

D0 

X 

X 

X 

X 

FIBLK3 

FIBLK2 

FIBLK1 

FIBLK0 

D15 

D14 

D13 

D12 

D11 

D10 

D9 

D8 

EIS 

ISSBE 

nINT_FF 

SITT 

ITS3 

ITS2 

ITS1 

ITS0 

NAME 

DIRECTION 

DEFAULT 

DESCRIPTION 

EIS 

rw 

0 

Enhanced Interrupt Selection
0 = Normal interrupt selection in ADC control register (default)
1 = Enhanced interrupt selection in ADC control register 

ISSBE 

rw 

0 

Interrupt Source Status Bank Enable
0 = ADC channel mapped to ADC Status Register (default)
1 = Interrupt Source Status mapped to lower nibble of ADC Status Register 

nINT_FF 

rw 

0 

Interrupt Flip-Flop Disable. Classic DMA and FIFO interrupt generation is independent of this setting.
0 = Allows classic ADC-sample and ADC-bursts to generate interrupts (default)
1 = Disallows or blocks classic ADC-sample and ADC-bursts from generating interrupts. Setting the DMA bit, however over-rides this function. Use alternate interrupt generation to achieve desired interrupts. 

ITS[3:0] 

rw 

0000 

Interrupt Threshold Counter Source Select. Increment by:
0000 = none (default)
0001 = Sample or Frame (i.e. ADC burst)
0010 = Block (i.e. 256 samples)
0011 = Analog Input Maximum Frame Count
0100 = Trigger Start and transition to active trigger state
0101 = Trigger Stop and transition to inactive trigger state
0110 = none
0111 = none
1000 = DIN0 rising edge
1001 = DIN0 falling edge
1010 = DIN1 rising edge
1011 = DIN1 falling edge
1100 = DIN2 rising edge
1101 = DIN2 falling edge
1110 = DIN3 rising edge
1111 = DIN3 falling edge 

SITT 

rw 

0 

Sync Interrupt Threshold Counter to the beginning of active trigger. This can be used to synchronize interrupts to trigger start.
0 = disabled (default)
1 = Clear Interrupt Threshold Counter to the beginning of the active trigger. 

FIBLK[3:0] 

rw 

0000 

Number of Blocks to generate a FIFO Interrupt. This is the number of samples written to the FIFO in order to generate an interrupt; if the sample timing is constant, then this interrupt will be at a constant rate as well.
0000 = 2 Blocks or 512 Samples (default)
0001 = 4 Blocks or 1,024 Samples
0010 = 8 Blocks or 2,048 Samples
0011 = 16 Blocks or 4,096 Samples
0100 = 32 Blocks or 8,192 Samples
0101 = 64 Blocks or 16,384 Samples
0110 = 128 Blocks or 32,768 Samples
0111 = 256 Blocks or 65,536 Samples
1000 = 512 Blocks or 131,072 Samples
1001 = 1024 Blocks or 262,144 Samples
1010 = 2048 Blocks or 524,288 Samples
1011 = 0.0625 Block or 16 Samples
1100 = 0.125 Block or 32 Samples
1101 = 0.25 Block or 64 Samples
1110 = 0.5 Block or 128 Samples
1111 = 1 Block or 256 Samples 

X 

- 

- 

Don't Care