AT32UC3A364-ALUT Atmel, AT32UC3A364-ALUT Datasheet - Page 573

• Manufacturer Part Number: AT32UC3A364-ALUT
• Description: IC MCU 64KB FLASH 144LQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3A364-ALUT

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, WDT
• Number Of I /o: 110
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Processor Series: AT32UC3x
• Core: AVR32
• Data Bus Width: 32 bit
• Data Ram Size: 96 KB
• Interface Type: IrDA/SCI/SCIF/UDI
• Maximum Clock Frequency: 66 MHz
• Number Of Timers: 3
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1104
• Minimum Operating Temperature: - 40 C
• Controller Family/series: AT32UC3A
• No. Of I/o's: 110
• Ram Memory Size: 64KB
• Cpu Speed: 66MHz
• No. Of Timers: 2
• Rohs Compliant: Yes
• For Use With: ATEVK1104 - KIT DEV/EVAL FOR AVR32 AT32UC3AATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

25.6.5.3
Figure 25-34. IrDA Demodulator Operations
32072C–AVR32–2010/03
CLK_USART
Receiver
Counter
Value
Input
RXD
IrDA Demodulator
6
5
4
Rejected
Table 25-11. IrDA Baud Rate Error (Continued)
The demodulator is based on the IrDA Receive filter comprised of an 8-bit down counter which is
loaded with the value programmed in IFR. When a falling edge is detected on the RXD pin, the
Filter Counter starts counting down at the CLK_USART speed. If a rising edge is detected on the
RXD pin, the counter stops and is reloaded with IFR. If no rising edge is detected when the
counter reaches 0, the input of the receiver is driven low during one bit time.
Figure 25-34
As the IrDA mode uses the same logic as the ISO7816, note that the FI_DI_RATIO field in FIDI
must be set to a value higher than 0 in order to assure IrDA communications operate correctly.
Pulse
Peripheral Clock
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
3
2
6
illustrates the operations of the IrDA demodulator.
6
5
Baud Rate
4
38 400
38 400
19 200
19 200
19 200
19 200
9 600
9 600
9 600
9 600
2 400
2 400
2 400
3
2
1
0
Accepted
Pulse
107
130
130
213
260
521
853
CD
53
65
12
65
24
96
Driven Low During 16 Baud Rate Clock Cycles
Baud Rate Error
0.63%
0.16%
0.00%
0.16%
0.31%
0.16%
0.00%
0.16%
0.16%
0.16%
0.00%
0.03%
0.04%
AT32UC3A3/A4
Pulse Time
19.53
19.53
19.53
19.53
78.13
78.13
78.13
4.88
4.88
9.77
9.77
9.77
9.77
573