Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK 데이터 시트
제품 코드
AT91SAM9N12-EK
879
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
Figure 42-14. Buffer Structure when only Touchscreen Channels are Enabled
Base Address (BA)
BA + 0x02
ADC_YPOSR
1
ADC_XPOSR
0
0
BA + 0x04
1
BA + 0x06
ADC_YPOSR
1
ADC_XPOSR
0
BA + [(N-1) * 4]
BA + [(N-1) * 4]+ 0x02
Assuming ADC_TSMR(TSMOD) = 1 or 3
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 1
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 1
trig.event1
DMA Buffer
Structure
Structure
trig.event2
trig.eventN
DMA Transfer
Assuming ADC_TSMR(TSMOD) =1 or 3
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 0
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 0
ADC_YPOSR
ADC_XPOSR
ADC_YPOSR
0
ADC_XPOSR
0
0
0
ADC_YPOSR
0
ADC_XPOSR
0
trig.event1
DMA Buffer
Structure
Structure
trig.event2
trig.eventN
ADC_YPOSR
ADC_XPOSR
Base Address (BA)
BA + 0x02
ADC_YPOSR
1
ADC_XPOSR
0
2
BA + 0x04
3
BA + 0x06
BA + [(N-1) * 8]
BA + [(N-1) * 8]+ 0x02
Assuming ADC_TSMR(TSMOD) = 2
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 1
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 1
trig.event1
DMA Buffer
Structure
Structure
trig.event2
trig.eventN
DMA Transfer
Assuming ADC_TSMR(TSMOD) = 2
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 0
ADC_TSMR(TSAV) = 0
ADC_CHSR = 0x000_00000 , ADC_EMR(TAG) = 0
ADC_PRESSR(Z2)
ADC_PRESSR(Z1)
ADC_YPOSR
1
ADC_XPOSR
0
2
3
ADC_PRESSR(Z2)
ADC_PRESSR(Z1)
ADC_YPOSR
1
ADC_XPOSR
0
2
3
ADC_PRESSR(Z2)
ADC_PRESSR(Z1)
BA + 0x08
BA + 0x0A
BA + 0x0C
BA + 0x0E
ADC_YPOSR
0
ADC_XPOSR
0
0
0
trig.event1
DMA Buffer
Structure
Structure
trig.event2
trig.eventN
ADC_PRESSR(Z2)
ADC_PRESSR(Z1)
ADC_YPOSR
0
ADC_XPOSR
0
0
0
ADC_PRESSR(Z2)
ADC_PRESSR(Z1)
ADC_YPOSR
0
ADC_XPOSR
0
0
0
ADC_PRESSR(Z2)
ADC_PRESSR(Z1)
BA + [(N-1) * 8]+ 0x04
BA + [(N-1) * 8]+ 0x06