AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 8

• Manufacturer Part Number: AT32UC3A464
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

2.4
32002F–03/2010
The Status Register
Figure 2-1.
The Status Register (SR) consists of two halfwords, one upper and one lower, see
page 8
well as the L and T bits, while the upper halfword contains information about the mode and state
the processor executes in. The upper halfword can only be accessed from a privileged mode.
Figure 2-2.
A p p lic a tio n
B it 3 1
Bit 31
SS
0
S P _ A P P
IN T 0 P C
IN T 1 P C
F IN T P C
S M P C
R 1 2
R 1 1
R 1 0
P C
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
S R
LC
1
0
B it 0
-
and
0
-
S u p e r v is o r
B it 3 1
Figure 2-3 on page
S P _ S Y S
IN T 0 P C
IN T 1 P C
F IN T P C
S M P C
Register File in AVR32A
The Status Register high halfword
R 1 2
R 1 1
R 1 0
P C
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
S R
0
-
B it 0
DM
0
IN T 0
B it 3 1
S P _ S Y S
D
F IN T P C
0
IN T 0 P C
IN T 1 P C
S M P C
R 1 2
R 1 1
R 1 0
P C
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
S R
B it 0
0
-
M2
9. The lower halfword contains the C, Z, N, V and Q flags, as
0
IN T 1
B it 3 1
S P _ S Y S
IN T 0 P C
IN T 1 P C
F IN T P C
S M P C
R 1 2
R 1 1
R 1 0
P C
S R
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
M1
0
B it 0
M0
1
IN T 2
B it 3 1
EM
S P _ S Y S
F IN T P C
IN T 0 P C
IN T 1 P C
1
S M P C
R 1 2
R 1 1
R 1 0
P C
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
S R
B it 0
S S _ S T A T U S
S S _ S P _ S Y S
S S _ S P _ A P P
I3M
S S _ A D R F
S S _ A D R R
0
S S _ A D R 0
S S _ A D R 1
S S _ R A R
S S _ R S R
I2M
FE
IN T 3
B it 3 1
0
S P _ S Y S
IN T 0 P C
IN T 1 P C
F IN T P C
S M P C
R 1 2
R 1 1
R 1 0
P C
S R
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
I1M
0
B it 0
I0M
0
E x c e p tio n
B it 3 1
Bit 16
S P _ S Y S
F IN T P C
IN T 0 P C
IN T 1 P C
GM
S M P C
1
R 1 2
R 1 1
R 1 0
P C
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
S R
B it 0
Bit name
Initial value
Global Interrupt Mask
Interrupt Level 0 Mask
Interrupt Level 1 Mask
Interrupt Level 2 Mask
Interrupt Level 3 Mask
Mode Bit 0
Mode Bit 1
Mode Bit 2
Reserved
Debug State
Debug State Mask
Reserved
Secure State
Exception Mask
N M I
B it 3 1
S P _ S Y S
IN T 0 P C
IN T 1 P C
F IN T P C
S M P C
R 1 2
R 1 1
R 1 0
P C
S R
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
B it 0
Figure 2-2 on
AVR32
S e c u r e
B it 3 1
S P _ S E C
IN T 0 P C
IN T 1 P C
F IN T P C
S M P C
R 1 2
R 1 1
R 1 0
P C
L R
R 9
R 8
R 7
R 6
R 5
R 4
R 3
R 2
R 1
R 0
S R
B it 0
8