AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 306

• 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

306
AVR32
RETE – Return from event handler
Architecture revision:
Architecture revision1 and higher.
Description
Returns from an exception or interrupt. SREG[L] is cleared to support atomical memory access
with the stcond instruction. This instruction can only be executed in INT0-INT3, EX and NMI
modes. Execution in Application or Supervisor modes will trigger a Privilege Violation exception.
Operation:
I.
Syntax:
I
Operands:
Status Flags
If (microarchitecture == AVR32A)
else
RETE
None
Q:
V:
N:
Z:
C:
SR ← *(SP
PC ← *(SP
If ( SR[M2:M0] == {B’010, B’011, B’100, B’101} )
SREG[L] ← 0;
SR ← RSR
PC ← RAR
SREG[L] ← 0;
Not affected
Not affected
Not affected
Not affected
Not affected
LR ← *(SP
R12 ← *(SP
R11 ← *(SP
R10 ← *(SP
R9 ← *(SP
R8 ← *(SP
SYS
SYS
Current Context
Current Context
++)
++)
SYS
SYS
SYS
SYS
SYS
SYS
++)
++)
++)
++)
++)
++)
32000D–04/2011