TPMC533 User Manual Issue 1.0.1
Page 100 of 107
8.1.2 DAC
The number of 16bit DAC Data words per Conversion Data Set is:
Number of DACs assigned to the DAC Sequencer x 4
Host RAM Data Buffer Example I:
•
DAC2 is assigned to the DAC Sequencer.
•
DAC1, DAC3 and DAC4 are not assigned to the DAC Sequencer.
Conversion Data Set
Host RAM Address
DAC Data
1
DMA Buffer Base Address
16bit DAC Data for DAC2 Channel A
DMA Buffer Base A 0x02
16bit DAC Data for DAC2 Channel B
DMA Buffer Base A 0x04
16bit DAC Data for DAC2 Channel C
DMA Buffer Base A 0x06
16bit DAC Data for DAC2 Channel D
2
DMA Buffer Base A 0x08
16bit DAC Data for DAC2 Channel A
DMA Buffer Base A 0x0A
16bit DAC Data for DAC2 Channel B
DMA Buffer Base A 0x0C
16bit DAC Data for DAC2 Channel C
DMA Buffer Base A 0x0E
16bit DAC Data for DAC2 Channel D
3
…
…
Table 8-3 : Host RAM Data Buffer Example I: Only DAC2 operating in Sequencer Mode
Host RAM Data Buffer Example II:
•
DAC1 and DAC2 are assigned to the DAC Sequencer.
•
DAC3 and DAC4 are not assigned to the DAC Sequencer.
Conversion Data Set
Host RAM Address
DAC Data
1
DMA Buffer Base Address
16bit DAC Data for DAC1 Channel A
DMA Buffer Base A 0x02
16bit DAC Data for DAC1 Channel B
DMA Buffer Base A 0x04
16bit DAC Data for DAC1 Channel C
DMA Buffer Base A 0x06
16bit DAC Data for DAC1 Channel D
DMA Buffer Base A 0x08
16bit DAC Data for DAC2 Channel A
DMA Buffer Base A 0x0A
16bit DAC Data for DAC2 Channel B
DMA Buffer Base A 0x0C
16bit DAC Data for DAC2 Channel C
DMA Buffer Base A 0x0E
16bit DAC Data for DAC2 Channel D
2
DMA Buffer Base A 0x10
16bit DAC Data for DAC1 Channel A
DMA Buffer Base A 0x12
16bit DAC Data for DAC1 Channel B
DMA Buffer Base A 0x14
16bit DAC Data for DAC1 Channel C
DMA Buffer Base A 0x16
16bit DAC Data for DAC1 Channel D
DMA Buffer Base A 0x18
16bit DAC Data for DAC2 Channel A
DMA Buffer Base A 0x1A
16bit DAC Data for DAC2 Channel B
DMA Buffer Base A 0x1C
16bit DAC Data for DAC2 Channel C
DMA Buffer Base A 0x1E
16bit DAC Data for DAC2 Channel D
3
…
…
Table 8-4 : Host RAM Data Buffer Example II: DAC1 and DAC2 are operating in Sequencer Mode