ATUC64L4U Atmel Corporation, ATUC64L4U Datasheet - Page 160

• Manufacturer Part Number: ATUC64L4U
• Manufacturer: Atmel Corporation

Specifications of ATUC64L4U

• Flash (kbytes): 64 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

160
AVR32
CPC – Compare with Carry
Architecture revision:
Architecture revision1 and higher.
Description
Performs a compare between the two registers specified. The operation is executed by doing a
subtraction with carry (as borrow) without writeback of the difference. The operation sets the sta-
tus flags according to the result of the subtraction, but does not affect the operand registers.
Note that the zero flag status before the operation is included in the calculation of the new zero
flag. This instruction allows large compares (64, 128 or more bits).
Operation:
I.
II.
Syntax:
I.
II.
Operands:
I.
II.
Status Flags:
Opcode:
15
31
0
15
0
1
Rd - Rs - C;
Rd - C;
cpc
cpc
{d, s} ∈ {0, 1, …, 15}
d ∈ {0, 1, …, 15}
In format II, Rs referred to below equals zero.
Q:
V:
N:
Z:
C:
Format I:
Format II:
0
1
1
13
29
0
0
1
Rd, Rs
Rd
Not affected
V ← (Rd[31] ∧ ¬Rs[31] ∧ ¬RES[31]) ∨ (¬Rd[31] ∧ Rs[31] ∧ RES[31])
N ← RES[31]
Z ← (RES[31:0] == 0) ∧ Z
C ← ¬Rd[31] ∧ Rs[31] ∨ Rs[31] ∧ RES[31] ∨ ¬Rd[31] ∧ RES[31]
12
12
28
1
1
11
0
1
Rs
1
0
1
9
0
25
8
1
8
0
24
0
7
0
0
0
0
0
0
1
0
0
4
0
20
0
0
0
3
19
0
Rd
Rd
0
32000D–04/2011
0
0
0
16