ATUC256L4U Atmel Corporation, ATUC256L4U Datasheet - Page 90

• Manufacturer Part Number: ATUC256L4U
• Manufacturer: Atmel Corporation

Specifications of ATUC256L4U

• 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 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

8.3.2.25
90
AVR32
DTLB Modified Exception
Table 8-3.
The DTLB Modified exception is generated when a data memory write hits a valid TLB entry, but
the Dirty bit of the entry is 0. This indicates that the page is not writable.
Privileged Instructions
csrf - clear status register flag
cache - perform cache operation
tlbr - read addressed TLB entry into
TLBEHI and TLBELO
tlbw - write TLB entry registers into
TLB
tlbs - search TLB for entry matching
TLBEHI[VPN]
mtsr - move to system register
mfsr - move from system register
mfdr - move from debug register
rete- return from exception
rets - return from supervisor call
retd - return from debug mode
sleep - sleep
ssrf - set status register flag
- move to debug register
RSR_EX = SR;
RAR_EX = PC;
TLBEAR = FAILING_VIRTUAL_ADDRESS;
TLBEHI[VPN] = FAILING_PAGE_NUMBER;
TLBEHI[I] = 0;
SR[R] = 0;
SR[J] = 0;
SR[M2:M0] = B’110;
SR[EM] = 1;
SR[GM] = 1;
PC = EVBA + 0x44;
List of instructions which can only execute in privileged modes.
Comment
Privileged only when accessing upper half of status register
Unpriviledged when accessing JOSP and JECR
Unpriviledged when accessing JOSP and JECR
Privileged only when accessing upper half of status register
32000D–04/2011