SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 921

• Manufacturer Part Number: SAM9G45
• Manufacturer: Atmel Corporation

Specifications of SAM9G45

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 5
• Lin: 4
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• External Bus Interface: 2
• 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

6438G–ATARM–19-Apr-11
Figure 40-4. Touch Screen Pen Detect
The Touch Screen Pen Detect can be used to generate a TSADCC interrupt to wake up the sys-
tem or it can be programmed to trig a conversion, so that a position can be measured as soon as
a contact is detected if the TSADCC is programmed for an operating mode involving the Touch
Screen.
The Pen Detect generates two types of status, reported in the
Both bits are automatically cleared as soon as the Status Register TSADCC_SR is read, and
can generate an interrupt by writing accordingly the
• the bit PENCNT is set as soon as a current flows for a time over the debouncing time as
• the bit NOCNT is set as soon as no current flows for a time over the debouncing time as
defined by PENDBC and remains set until TSADCC_SR is read.
defined by PENDBC and remains set until TSADCC_SR is read.
X
Y
X
Y
M
M
P
P
VDDANA
VDDANA
GND
GND
GND
“TSADCC Interrupt Enable
To the ADC
“TSADCC Status
Debouncer
PENDBC
SAM9G45
Pen Interrupt
Register”.
Register”:
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