AT32UC3A1256AU Atmel Corporation, AT32UC3A1256AU Datasheet - Page 330

• Manufacturer Part Number: AT32UC3A1256AU
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A1256AU

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 69
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32058K AVR32-01/12
Figure 26-34. IrDA Modulation
26.7.6.2
IrDA Baud Rate
Table 26-9.
Figure 26-34 on page 330
Table 26-10 on page 330
tion. Note that the requirement on the maximum acceptable error of ±1.87% must be met.
Table 26-10. IrDA Baud Rate Error
Transmitter
Baud Rate
38.4 Kb/s
57.6 Kb/s
115.2 Kb/s
Peripheral Clock
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
32 768 000
40 000 000
Output
TXD
Bit Period
IrDA Pulse Duration
Start
Bit
0
1
Baud Rate
115 200
115 200
115 200
115 200
57 600
57 600
57 600
57 600
38 400
38 400
38 400
38 400
19 200
19 200
19 200
19 200
gives some examples of CD values, baud rate error and pulse dura-
shows an example of character transmission.
0
1
Data Bits
0
0
Pulse Duration (3/16)
4.88 µs
3.26 µs
1.63 µs
107
130
CD
22
36
43
33
53
65
12
65
11
18
22
2
4
6
1
1
16
3 Bit Period
Baud Rate Error
0
Stop
0.00%
1.38%
1.25%
1.38%
0.00%
1.38%
1.25%
0.93%
0.00%
1.38%
0.63%
0.16%
0.00%
0.16%
0.31%
0.16%
Bit
1
AT32UC3A
Pulse Time
4.88
4.88
9.77
9.77
9.77
1.63
1.63
1.63
1.63
3.26
3.26
3.26
3.26
4.88
4.88
9.77
330