AT32UC3A364-ALUT Atmel, AT32UC3A364-ALUT Datasheet - Page 408
AT32UC3A364-ALUT
Manufacturer Part Number
AT32UC3A364-ALUT
Description
IC MCU 64KB FLASH 144LQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A364-ALUT
Core Processor
AVR
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, POR, WDT
Number Of I /o
110
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
96 KB
Interface Type
IrDA/SCI/SCIF/UDI
Maximum Clock Frequency
66 MHz
Number Of Timers
3
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1104
Minimum Operating Temperature
- 40 C
Controller Family/series
AT32UC3A
No. Of I/o's
110
Ram Memory Size
64KB
Cpu Speed
66MHz
No. Of Timers
2
Rohs Compliant
Yes
For Use With
ATEVK1104 - KIT DEV/EVAL FOR AVR32 AT32UC3AATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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- Download datasheet (16Mb)
21.7.3.3
21.7.3.4
Figure 21-7. Programmable Delays
32072C–AVR32–2010/03
Chip Select 1
Chip Select 2
Clock generation
Transfer delays
SPCK
The SPI Baud rate clock is generated by dividing the CLK_SPI , by a value between 1 and 255.
This allows a maximum operating baud rate at up to CLK_SPI and a minimum operating baud
rate of CLK_SPI divided by 255.
Writing the Serial Clock Baud Rate field in the CSRn registers (CSRn.SCBR) to zero is forbid-
den. Triggering a transfer while CSRn.SCBR is zero can lead to unpredictable results.
At reset, CSRn.SCBR is zero and the user has to configure it at a valid value before performing
the first transfer.
The divisor can be defined independently for each chip select, as it has to be configured in the
CSRn.SCBR field. This allows the SPI to automatically adapt the baud rate for each interfaced
peripheral without reprogramming.
Figure 21-7 on page 408
same chip select. Three delays can be configured to modify the transfer waveforms:
These delays allow the SPI to be adapted to the interfaced peripherals and their speed and bus
release time.
• The delay between chip selects, programmable only once for all the chip selects by writing to
• The delay before SPCK, independently programmable for each chip select by writing the
• The delay between consecutive transfers, independently programmable for each chip select
the Delay Between Chip Selects field in the MR register (MR.DLYBCS). Allows insertion of a
delay between release of one chip select and before assertion of a new one.
Delay Before SPCK field in the CSRn registers (CSRn.DLYBS). Allows the start of SPCK to
be delayed after the chip select has been asserted.
by writing the Delay Between Consecutive Transfers field in the CSRn registers
(CSRn.DLYBCT). Allows insertion of a delay between two transfers occurring on the same
chip select
DLYBCS
DLYBS
shows a chip select transfer change and consecutive transfers on the
DLYBCT
AT32UC3A3/A4
DLYBCT
408
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