AT32UC3B164-AUT Atmel, AT32UC3B164-AUT Datasheet - Page 659
![IC MCU AVR32 64KB FLASH 48-TQFP](/photos/6/82/68248/313-48-vqfp_sml.jpg)
AT32UC3B164-AUT
Manufacturer Part Number
AT32UC3B164-AUT
Description
IC MCU AVR32 64KB FLASH 48-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3B164-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
60MHz
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
28
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Controller Family/series
AT32UC3B
No. Of I/o's
28
Ram Memory Size
16KB
Cpu Speed
60MHz
No. Of Timers
1
Rohs Compliant
Yes
For Use With
ATSTK600-TQFP48 - STK600 SOCKET/ADAPTER 48-TQFPATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATEVK1101 - KIT DEV/EVAL FOR AVR32 AT32UC3B
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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31.2.2.3
31.2.2.4
31.2.2.5
32059I–06/2010
Power Manager
ADC
Processor and Architecture
1. If the BOD level is higher than VDDCORE, the part is constantly resetted
1. Sleep Mode activation needs addtionnal A to D conversion
1. LDM instruction with PC in the register list and without ++ increments Rp
2. RETE instruction does not clear SREG[L] from interrupts
3. Exceptions when system stack is protected by MPU
4. Set the polarity CPOL to the required one.
5. Read the RXHOLDING register.
Transfers can now befin and RXREADY will now behave as expected.
If the BOD level is set to a value higher than VDDCORE and enabled by fuses, the part will
be in constant reset.
Fix/Workaround
Apply an external voltage on VDDCORE that is higher than the BOD level and is lower than
VDDCORE max and disable the BOD.
If the ADC sleep mode is activated when the ADC is idle the ADC will not enter sleep mode
before after the next AD conversion.
Fix/Workaround
Activate the sleep mode in the mode register and then perform an AD conversion.
For LDM with PC in the register list: the instruction behaves as if the ++ field is always set, ie
the pointer is always updated. This happens even if the ++ field is cleared. Specifically, the
increment of the pointer is done in parallel with the testing of R12.
Fix/Workaround
None.
The RETE instruction clears SREG[L] as expected from exceptions.
Fix/Workaround
When using the STCOND instruction, clear SREG[L] in the stacked value of SR before
returning from interrupts with RETE.
RETS behaves incorrectly when MPU is enabled and MPU is configured so thatsystem
stack is not readable in unprivileged mode.
Fix/Workaround
Workaround 1: Make system stack readable in unprivileged mode,
or
Workaround 2: Return from supervisor mode using rete instead of rets. This requires: 1.
Changing the mode bits from 001b to 110b before issuing the instruction.
Updating the mode bits to the desired value must be done using a single mtsr instruction so
it is done atomically. Even if this step is described in general as not safe in the UC technical
reference guide, it is safe in this very specific case.
2. Execute the RETE instruction.
AT32UC3B
659
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