AT32UC3B1256 Atmel Corporation, AT32UC3B1256 Datasheet - Page 314
AT32UC3B1256
Manufacturer Part Number
AT32UC3B1256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3B0128.pdf
(684 pages)
5.AT32UC3B0128.pdf
(107 pages)
Specifications of AT32UC3B1256
Flash (kbytes)
256 Kbytes
Pin Count
48
Max. Operating Frequency
60 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
28
Ext Interrupts
28
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
6
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
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:
AT32UC3B1256-AUR
Manufacturer:
OMRON
Quantity:
12 000
Company:
Part Number:
AT32UC3B1256-AUT
Manufacturer:
ATMEL
Quantity:
1 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3B0128 PDF datasheet #4
- AT32UC3B0128 PDF datasheet #5
- Current page: 314 of 684
- Download datasheet (11Mb)
21.6.4.11
32059L–AVR32–01/2012
Receiver Time-out
The Time-out Value field in the Receiver Time-out Register (RTOR.TO) enables handling of vari-
able-length frames by detection of selectable idle durations on the RXD line. The value written to
TO is loaded to a decremental counter, and unless it is zero, a time-out will occur when the
amount of inactive bit periods match the initial counter value. If a time-out has not occurred, the
counter will reload and restart every time a new character arrives. A time-out sets the TIMEOUT
bit in CSR. Clearing TIMEOUT can be done in two ways:
Figure 21-23. Receiver Time-out Block Diagram
Table 21-9.
• Writing a one to the Start Time-out bit (CR.STTTO). This also aborts count down until the
• Writing a one to the Reload and Start Time-out bit (CR.RETTO). This also reloads the
RETTO
next character has been received.
counter and restarts count down immediately.
Baud Rate (bit/sec)
Character
Received
STTTO
200000
14400
19200
28800
33400
56000
57600
1 200
2 400
4 800
9 600
600
Maximum Time-out Period
1
D
Clear
Q
Baud Rate
Clock
Clock
Bit Time (µs)
1 667
833
417
208
104
69
52
35
30
18
17
5
16-bit Time-out
Counter
TO
Load
16-bit
Value
0
Time-out (ms)
109 225
54 613
27 306
13 653
6 827
4 551
3 413
2 276
1 962
1 170
1 138
=
328
TIMEOUT
314
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