AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 918

• Manufacturer Part Number: AT32UC3A4256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A4256

• Flash (kbytes): 256 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
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

33.7.7
Name:
Access Type:
Offset:
Reset Value:
•
•
32072G–11/2011
TXREADY: TX Ready Interrupt Status
UNDERRUN: Underrun Interrupt Status
31
23
15
7
-
-
-
-
This bit is set when the Audio Bitstream DAC is ready to receive a new data in SDR.
This bit is cleared when the Audio Bitstream DAC is not ready to receive a new data in SDR.
This bit is set when at least one Audio Bitstream DAC Underrun has occurred since the last time this bit was cleared (by reset or
by writing in ICR).
This bit is cleared when no Audio Bitstream DAC Underrun has occurred since the last time this bit was cleared (by reset or by
writing in ICR).
Interrupt Status Register
30
22
14
ISR
Read-only
0x1C
0x00000000
6
-
-
-
-
TXREADY
29
21
13
5
-
-
-
UNDERRUN
28
20
12
4
-
-
-
27
19
11
3
-
-
-
-
26
18
10
2
-
-
-
-
25
17
9
1
-
-
-
-
24
16
8
0
-
-
-
-
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