AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 429

• 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

20.3
Figure 20-1. SPI Block Diagram
20.4
Figure 20-2. Application Block Diagram: Single Master/Multiple Slave Implementation
32145A–12/2011
Block Diagram
Application Block Diagram
Peripheral Bus
Spi Master
CLK_SPI
NPCS0
NPCS1
NPCS2
NPCS3
SPCK
MOSI
MISO
Interrupt Control
NC
Peripheral DMA
Spi Interface
SPI Interrupt
Controller
Controller
I/O
SPCK
MISO
MOSI
NSS
SPCK
MISO
MOSI
NSS
SPCK
MISO
MOSI
NSS
AT32UC3L0128/256
Slave 0
Slave 1
Slave 2
SPCK
MISO
MOSI
NPCS0/NSS
NPCS1
NPCS2
NPCS3
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