AT32UC3A3128-ALUT Atmel, AT32UC3A3128-ALUT Datasheet - Page 876
![IC MCU 128KB FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
AT32UC3A3128-ALUT
Manufacturer Part Number
AT32UC3A3128-ALUT
Description
IC MCU 128KB FLASH 144LQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A3128-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
128KB (128K 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
109
Ram Memory Size
32KB
Cpu Speed
66MHz
No. Of Timers
1
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
Company:
Part Number:
AT32UC3A3128-ALUT
Manufacturer:
Atmel
Quantity:
135
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31.6
31.6.1
31.6.2
32072C–AVR32–2010/03
Functional Description
Reset Operation
Communication with the Memory Stick
An internal reset (initialization of the internal registers and operating sequence) is performed
when PB reset is active or by setting SYS.RST=1. RST bit is cleared to 0 after the internal reset
is completed.
The protocol currently being executed stops, and the internal operating sequence is initialized.
In addition, the FIFO is set to the empty state (SR.EMP=1, SR.FUL=0).
However, when the host controller is reset during communication with the Memory Stick, the
resulting bus state may differ from the Memory Stick. Therefore, when reset is performed during
communication, also power-on-reset the Memory Stick.
Internal registers are initialized to their initial value. However, some bits in following registers are
not affected by RST bit :
An example of communication with the Memory Stick is shown below. This example shows the
case when Transfer Protocol Command (TPC) SET_CMD is executed.
When the command register is written, the communication protocol with the Memory Stick starts
and data transmit/receive is performed.
The data transfer direction is determined from TPC[3]. When TPC[3]=0, the read protocol is per-
formed, and when TPC[3]=1, the write protocole is performed. When TPC[3] and FDIR bit differ,
the TPC[3] value is reflected to system register bit FDIR when the protocol starts.
FIFO can be written after protocol start therefore data must be written each time ISR.DRQ=1.
Even when the data is less than 8 bytes, always read and write 8 bytes of data. All interrupt
• SYS : CLKDIV[7:0],
•ISR : all bits but DRQ,
•SR : ISTA,
•IMR : all bits.
– Enable PEND and MSINT interrupt requests (write PEND=1, MSINT=1 in IER).
– Set FIFO direction to “CPU to MS” (write FDIR=1 in SYS).
– Write the command data to the FIFO (write DAT).
– Write the TPC and the data transfer size to the command register to start the
– After the protocol ends, an interrupt request is output from the host controller
– Some TPC commands require additional time to be executed by Memory Stick
protocol (write CMD).
(PEND=1 in ISR). To acknowledge this interrupt request, CPU must clear the source
of interrupt by writing PEND=1 in ISCR.
therefore INT can appear later after protocol end. After INT generation, an interrupt
request is output from the host controller (MSINT=1 in ISR). To acknowledge this
interrupt request, CPU must clear the source of interrupt by writing MSINT=1 in
ISCR.
AT32UC3A3/A4
876
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