SAM9G15 Atmel Corporation, SAM9G15 Datasheet - Page 932
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SAM9G15
Manufacturer Part Number
SAM9G15
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G15.pdf
(1211 pages)
5.SAM9G15.pdf
(45 pages)
Specifications of SAM9G15
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
105
Ext Interrupts
105
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
3
Uart
6
Lin
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
DDR2/LPDDR, SDRAM/LPSDR
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9G15 PDF datasheet #4
- SAM9G15 PDF datasheet #5
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41.7.10.4
Figure 41-15. Buffer Structure with and without pen detection enabled
932
trig.event1
trig.event2
trig.eventN
trig.eventN+1
Assuming ADC_TSMR(TSMOD) = 1, PENDET = 1
ADC_TSMR(TSAV) = ADC_TSMR(TSFREQ) = 0
ADC_CHSR = 0x000_0100 , ADC_EMR(TAG) = 1
DMA buffer
Structure
SAM9G35
Pen Detection Status
8
0
1
8
0
1
8
0
0
8
0
0
If the pen detection measure is enabled (PENDET is set in ADC_TSMR register), the XPOS,
YPOS, Z1, Z2 values transmitted to the buffer through ADC_LCDR register are cleared (includ-
ing the CHNB field), if the PENS flag of ADC_ISR register is 0. When the PENS flag is set,
XPOS, YPOS, Z1, Z2 are normally transmitted.
Therefore, using pen detection together with tag function eases the post-processing of the buf-
fer, especially to determine which touchscreen converted values correspond to a period of time
when the pen was in contact with the screen.
When the pen detection is disabled or the tag function is disabled, XPOS, YPOS, Z1, Z2 are nor-
mally transmitted without tag and no relationship can be found with pen status, thus post-
processing may not be easy.
2 successive tags
cleared => PENS = 0
ADC_CDR8
ADC_XPOSR
ADC_YPOSR
ADC_CDR8
ADC_XPOSR
ADC_YPOSR
ADC_CDR8
0
0
ADC_CDR8
0
0
Base Address (BA)
BA + 0x02
BA + 0x04
BA + 0x06
BA + 0x08
BA + 0x0A
BA + [(N-1) * 6]
BA + [(N-1) * 6]+ 0x02
BA + [(N-1) * 6]+ 0x04
DMA Transfer
trig.event1
trig.event2
trig.eventN
Assuming ADC_TSMR(TSMOD) = 1, PENDET = 1
ADC_TSMR(TSAV) = ADC_TSMR(TSFREQ) = 0
ADC_CHSR = 0x000_0100 , ADC_EMR(TAG) =0
DMA buffer
Structure
ADC_XPOSR*, ADC_YPOSR* can b
any value when PENS = 0
0
0
0
0
0
0
0
0
0
0
0
0
ADC_CDR8
ADC_XPOSR
ADC_YPOSR
ADC_CDR8
ADC_XPOSR
ADC_YPOSR
ADC_CDR8
ADC_XPOSR*
ADC_YPOSR*
ADC_CDR8
ADC_XPOSR*
ADC_YPOSR*
11053B–ATARM–22-Sep-11
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