AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 666

• Manufacturer Part Number: AT32UC3L0256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L0256

• Flash (kbytes): 256 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 Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• 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

28.5.2
28.5.3
28.5.4
28.5.5
32145A–12/2011
Clocks
Interrupts
Peripheral Events
Peripheral Direct Memory Access
Table 28-2.
The clock for the CAT module, CLK_CAT, is generated by the Power Manager (PM). This clock
is turned on by default, and can be enabled and disabled in the PM. The user must ensure that
CLK_CAT is enabled before using the CAT module.
QMatrix operations also require the CAT generic clock, GCLK_CAT. This generic clock is gener-
ated by the System Control Interface (SCIF), and is shared between the CAT and the Analog
Comparator Interface. The user must ensure that the GCLK_CAT is enabled in the SCIF before
using QMatrix functionality in the CAT module. For proper QMatrix operation, the frequency of
GCLK_CAT must be less than half the frequency of CLK_CAT. If only QTouch functionality is
used, then GCLK_CAT is unnecessary.
The CAT interrupt request line is connected to the interrupt controller. Using CAT interrupts
requires the interrupt controller to be programmed first.
The CAT peripheral events are connected via the Peripheral Event System. Refer to the Periph-
eral Event System chapter for details.
The CAT module provides handshake capability for a Peripheral DMA Controller. One hand-
shake controls transfers from the Acquired Count Register (ACOUNT) to memory. A second
handshake requests burst lengths for each (X,Y) pair to the Matrix Burst Length Register
CAT Module Pin
Name
CSB8
CSA9
CSB9
CSA10
CSB10
CSA11
CSB11
CSA12
CSB12
CSA13
CSB13
CSA14
CSB14
CSA15
CSB15
CSA16
CSB16
Pin Selection Guide
QTouch Method
Pin Name
SNSK8
SNS9
SNSK9
SNS10
SNSK10
SNS11
SNSK11
SNS12
SNSK12
SNS13
SNSK13
SNS14
SNSK14
SNS15
SNSK15
SNS16
SNSK16
QMatrix Method Pin
Name
X9
Y4
YK4
X10
X11
Y5
YK5
X12
X13
Y6
YK6
X14
X15
Y7
YK7
X16
X17
AT32UC3L0128/256
Selection Bit in
PINMODEx Register
SP8
SP9
SP9
SP10
SP10
SP11
SP11
SP12
SP12
SP13
SP13
SP14
SP14
SP15
SP15
SP16
SP16
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