AT32UC3B1256 Atmel Corporation, AT32UC3B1256 Datasheet - Page 233
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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: 233 of 684
- Download datasheet (11Mb)
32059L–AVR32–01/2012
Figure 19-19. TWI Read Operation with Multiple Data Bytes with or without Internal Address
No
Read Receive Holding register (TWI_RHR)
Read Receive Holding register (TWI_RHR)
(CLDIV, CHDIV, CKDIV) in TWI_CWGR
- Internal address size (if IADR used)
Set the Master Mode register:
TWI_CR = MSEN + SVDIS
Read ==> bit MREAD = 1
Internal address size = 0?
Set the Control register:
- Device slave address
- Transfer direction bit
Read Status register
Read Status register
Read status register
(Needed only once)
TWI_CR = START
TWI_CR = STOP
Yes
Start the transfer
Last data to read
Stop the transfer
- Master enable
TXCOMP = 1?
Set TWI clock
RXRDY = 1?
Yes
Yes
Yes
RXRDY = 1?
Yes
but one?
BEGIN
END
No
No
No
Set the internal address
TWI_IADR = address
233
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