AT32UC3B0256-A2UR Atmel, AT32UC3B0256-A2UR Datasheet - Page 599
![MCU AVR32 256K FLASH 64-TQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
AT32UC3B0256-A2UR
Manufacturer Part Number
AT32UC3B0256-A2UR
Description
MCU AVR32 256K FLASH 64-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B1512-Z1UT.pdf
(692 pages)
Specifications of AT32UC3B0256-A2UR
Package / Case
64-TQFP, 64-VQFP
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
44
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
32K x 8
Program Memory Size
256KB (256K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Package
64TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
60 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
44
Interface Type
I2S/SPI/TWI/USART/USB
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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27.4.11.5
27.4.11.6
32059K–03/2011
Error Reporting
Protected Reporting
The Service Access Bus may not be able to complete all accesses as requested. This may be
because the address is invalid, the addressed area is read-only or cannot handle byte/halfword
accesses, or because the chip is set in a protected mode where only limited accesses are
allowed.
The error bit is updated when an access completes, and is cleared when a new access starts.
What to do if the error bit is set:
A protected status may be reported during Shift-IR or Shift-DR. This indicates that the security
bit in the Flash Controller is set and that the chip is locked for access, according to
27.5.1.
The protected state is reported when:
What to do if the protected bit is set:
• During Shift-DR of read data: The read data is invalid. The SAB stays in data mode. Repeat
• During Shift-DR of write data: The write data is ignored. The SAB stays in data mode. Repeat
• During Shift-IR: The new instruction is selected. The last operation performed using the old
• During Shift-DR of an address: The previous operation failed. The new address is accepted.
• During Shift-DR of read data: The read operation failed, and the read data is invalid.
• During Shift-DR of write data: The previous write operation failed. The new data is accepted
• While polling with CANCEL_ACCESS: The previous access was cancelled. It may or may not
• After power-up: The error bit is set after power up, but there has been no previous SAB
• The Flash Controller is under reset. This can be due to the AVR_RESET command or the
• The Flash Controller has not read the security bit from the flash yet (This will take a a few
• The security bit in the Flash Controller is set.
• Release all active AVR_RESET domains, if any.
• Release the RESET_N line.
• Wait a few ms for the security bit to clear. It can be set temporarily due to a reset.
• Perform a CHIP_ERASE to clear the security bit. NOTE : This will erase all the contents of the
scanning until the busy bit clears.
scanning until the busy bit clears.
instruction did not complete successfully.
If the read bit is set, a read operation is started.
and a write operation started. This should only occur during block writes or stream writes. No
error can occur between scanning a write address and the following write data.
have actually completed.
instruction so this error can be discarded.
RESET_N line.
ms). Happens after the Flash Controller reset has been released.
non-volatile memory.
AT32UC3B
Section
599
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