AT32UC3C2256C Atmel Corporation, AT32UC3C2256C Datasheet - Page 26

• Manufacturer Part Number: AT32UC3C2256C
• Manufacturer: Atmel Corporation

Specifications of AT32UC3C2256C

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 45
• Ext Interrupts: 64
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 68
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6 or 4.5 to 5.5
• Operating Voltage (vcc): 3.0 to 3.6 or 4.5 to 5.5
• Fpu: Yes
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 13
• Input Capture Channels: 6
• Pwm Channels: 14
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

2.12
26
Recommended Call Convention
AVR32
Table 2-9.
The compiler vendor is free to define a call convention, but seen from a hardware point of view,
there are some recommendations on how the call convention should be defined.
Register R12 is intended as return value register in connection with function calls. Some instruc-
tions will use this register implicitly. For instance, the conditional ret instruction will move its
argument into R12.
Name
DLSZ
DASS
CONFIG1 Fields (Continued)
Bit
5:3
2:0
Description
Line size in DCACHE
Value
0
1
2
3
4
5
6
7
Associativity of DCACHE
Value
0
1
2
3
4
5
6
7
Semantic
No DCACHE present
4 bytes
8 bytes
16 bytes
32 bytes
64 bytes
128 bytes
256 bytes
Semantic
Direct mapped
2-way
4-way
8-way
16-way
32-way
64-way
128-way
32000D–04/2011