AT32UC3L064-ZAUT Atmel, AT32UC3L064-ZAUT Datasheet - Page 838
![IC MCU AVR32 64KB FLASH 48VQFN](/photos/6/82/68297/48-qfn_sml.jpg)
AT32UC3L064-ZAUT
Manufacturer Part Number
AT32UC3L064-ZAUT
Description
IC MCU AVR32 64KB FLASH 48VQFN
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3L-EK.pdf
(858 pages)
Specifications of AT32UC3L064-ZAUT
Core Processor
AVR
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 3.6 V
Data Converters
A/D 9x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
36
Number Of Timers
7
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL
Development Tools By Supplier
AT32UC3L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 9 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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- Download datasheet (13Mb)
35.4.13
35.4.14
32099F–11/2010
SPI
TWI
1. SPI disable does not work in SLAVE mode
2. SPI bad serial clock generation on 2nd chip select when SCBR==1, CPOL==1, and
3. SPI data transfer hangs with CSR0.CSAAT==1 and MR.MODFDIS==0
4. Disabling SPI has no effect on the SR.TDRE bit
6. SPI mode fault detection enable causes incorrect behavior
1. TWIM Version Register reads zero
2. TWIS Version Register reads zero
3. TWIS CR.STREN does not work in deep sleep modes
SPI disable does not work in SLAVE mode.
Fix/Workaround
Read the last received data, then perform a software reset by writing a one to the Software
Reset bit in the Control Register (CR.SWRST).
NCPHA==0
W h e n m u l t i p l e c h i p s e l e c t s a r e i n u s e , i f o n e o f t h e b a u d r a t e s i s e q u a l t o 1
(CSRn.SCBR==1) and one of the others is not equal to 1, and CSRn.CPOL==1 and
CSRn.NCPHA==0, an additional pulse will be generated on SCK.
Fix/Workaround
When multiple chip selects are in use, if one of the baudrates is equal to 1, the others must
also be equal to 1 if CSRn.CPOL==1 and CSRn.NCPHA==0.
When CSR0.CSAAT==1 and mode fault detection is enabled (MR.MODFDIS==0), the SPI
module will not start a data transfer.
Fix/Workaround
Disable mode fault detection by writing a one to MR.MODFDIS.
Disabling SPI has no effect on SR.TDRE whereas the write data command is filtered when
SPI is disabled. This means that as soon as the SPI is disabled it becomes impossible to
reset the SR.TDRE bit by writing to TDR. So if the SPI is disabled during a PDCA transfer,
the PDCA will continue to write data to TDR (as SR.TDRE stays high) until its buffer is
empty, and all data written after the disable command is lost.
Fix/Workaround
Disable the PDCA, add 2 NOP (minimum), and disable the SPI. To continue the transfer,
enable the SPI and the PDCA.
When mode fault detection is enabled (MR.MODFDIS==0), the SPI module may not operate
properly.
Fix/Workaround
Always disable mode fault detection before using the SPI by writing a one to MR.MODFDIS.
TWIM Version Register (VR) reads zero instead of 0x101.
Fix/Workaround
None.
TWIS Version Register (VR) reads zero instead of 0x112.
Fix/Workaround
None.
When the device is in Stop, DeepStop, or Static mode, address reception will not wake the
device if both CR.SOAM and CR.STREN are one.
AT32UC3L016/32/64
838
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