AT32UC3A1512 Atmel Corporation, AT32UC3A1512 Datasheet - Page 328
AT32UC3A1512
Manufacturer Part Number
AT32UC3A1512
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
Specifications of AT32UC3A1512
Flash (kbytes)
512 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A1512-U
Manufacturer:
ATMEL
Quantity:
2
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A0128 PDF datasheet #4
- AT32UC3A0128 PDF datasheet #5
- Current page: 328 of 826
- Download datasheet (11Mb)
32058K AVR32-01/12
Figure 26-31. T = 0 Protocol without Parity Error
Figure 26-32. T = 0 Protocol with Parity Error
26.7.5.3
26.7.5.4
26.7.5.5
26.7.5.6
Baud Rate
Baud Rate
Clock
I/O
Clock
RXD
Transmit Character Repetition
Disable Successive Receive NACK
Receive Error Counter
Receive NACK Inhibit
Start
Bit
Start
Bit
D0
The USART receiver also records the total number of errors. This can be read in the Number of
Error (NER) register. The NB_ERRORS field can record up to 255 errors. Reading NER auto-
matically clears the NB_ERRORS field.
The USART can also be configured to inhibit an error. This can be achieved by setting the
INACK bit in the Mode Register (MR). If INACK is at 1, no error signal is driven on the I/O line
even if a parity bit is detected, but the INACK bit is set in the Status Register (SR). The INACK
bit can be cleared by writing the Control Register (CR) with the RSTNACK bit at 1.
Moreover, if INACK is set, the erroneous received character is stored in the Receive Holding
Register, as if no error occurred. However, the RXRDY bit does not raise.
When the USART is transmitting a character and gets a NACK, it can automatically repeat the
character before moving on to the next one. Repetition is enabled by writing the
MAX_ITERATION field in the Mode Register (MR) at a value higher than 0. Each character can
be transmitted up to eight times; the first transmission plus seven repetitions.
If MAX_ITERATION does not equal zero, the USART repeats the character as many times as
the value loaded in MAX_ITERATION.
When the USART repetition number reaches MAX_ITERATION, the ITERATION bit is set in the
Channel Status Register (CSR). If the repetition of the character is acknowledged by the
receiver, the repetitions are stopped and the iteration counter is cleared.
The ITERATION bit in CSR can be cleared by writing the Control Register with the RSIT bit at 1.
The receiver can limit the number of successive NACKs sent back to the remote transmitter.
This is programmed by setting the bit DSNACK in the Mode Register (MR). The maximum num-
ber of NACK transmitted is programmed in the MAX_ITERATION field. As soon as
D0
D1
D1
D2
D2
D3
D3
D4
D4
D5
D5
D6
D6
D7
D7
Parity
Bit
Parity
Bit
Time 1
Guard
Time 1
Guard
Error
Time 2
Guard
Time 2
Guard
Start
Next
Bit
AT32UC3A
Start
Bit
Repetition
D0
D1
328
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