ATUC64L4U Atmel Corporation, ATUC64L4U Datasheet - Page 772

• Manufacturer Part Number: ATUC64L4U
• Manufacturer: Atmel Corporation

Specifications of ATUC64L4U

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

31.5
31.5.1
32142A–12/2011
Product Dependencies
I/O Lines
Table 31-1.
In order to use the CAT module, other parts of the system must be configured correctly, as
described below.
The CAT pins may be multiplexed with other peripherals. The user must first program the I/O
Controller to give control of the pins to the CAT module. In QMatrix mode, the Y lines must be
driven by the CAT and analog comparators sense the voltage on the Y lines. Thus, the CAT (not
the Analog Comparator Interface) must be the selected function for the Y lines in the I/O
Controller.
By writing ones and zeros to bits in the Pin Mode Registers (PINMODEx), most of the CAT pins
can be individually selected to implement the QTouch method or the QMatrix method. Each pin
has a different name and function depending on whether it is implementing the QTouch method
or the QMatrix method. The following table shows the pin names for each method and the bits in
the PINMODEx registers which control the selection of the QTouch or QMatrix method.
Table 31-2.
Name
SMP
SYNC
VDIVEN
CAT Module Pin
Name
CSA0
CSB0
CSA1
CSB1
CSA2
CSB2
CSA3
CSB3
CSA4
CSB4
CSA5
CSB5
CSA6
CSB6
CSA7
CSB7
CSA8
I/O Lines Description
Pin Selection Guide
Description
SMP line (only used for QMatrix)
Synchronize signal
Voltage divider enable (only used for QMatrix)
QTouch Method
Pin Name
SNS0
SNSK0
SNS1
SNSK1
SNS2
SNSK2
SNS3
SNSK3
SNS4
SNSK4
SNS5
SNSK5
SNS6
SNSK6
SNS7
SNSK7
SNS8
QMatrix Method Pin
Name
X0
X1
Y0
YK0
X2
X3
Y1
YK1
X4
X5
Y2
YK2
X6
X7
Y3
YK3
X8
ATUC64/128/256L3/4U
Selection Bit in
PINMODEx Register
SP0
SP0
SP1
SP1
SP2
SP2
SP3
SP3
SP4
SP4
SP5
SP5
SP6
SP6
SP7
SP7
SP8
Output
Output
Type
Input
772