AT32UC3A4128 Atmel Corporation, AT32UC3A4128 Datasheet - Page 121
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AT32UC3A4128
Manufacturer Part Number
AT32UC3A4128
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A4128
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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ATMEL
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2 620
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Part Number:
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Manufacturer:
STM
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6 278
Company:
Part Number:
AT32UC3A4128SC1UT
Manufacturer:
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6 055
9.4.4
32002F–03/2010
Triggering trace
the data bus operation is a double word load / store, the breakpoint module will see the word
data value which corresponds to the address in BWA.
One data breakpoint module can only compare 32 bits of data. The data to be matched can
therefore not cross a word boundary if the data breakpoint is to match correctly. When the
debugger wants to match on a byte or halfword, the BWD register must be written with the LSB
aligned, and the BWC:BME bits must be set to mask the upper bits of the BWD register.
For example, if the debugger wants to match against Byte 1 in Figure 9-8, the BWA must be set
to the byte address of Byte 1 and the BWD written with the value to match on aligned to LSB.
Also the BWC:BME must be set to mask the 24 most significant bits of the BWD register (BME =
0xE).
By default, the data breakpoint module will match on the data value regardless of the size of the
access. The data BWC can also be set to match on a specific access size if the SIZE bits are
set. The debugger can for example, set the breakpoint module to match only on byte writes to
byte 1 in Figure 9-8. The BWD register must still be aligned correctly, and the byte mask must be
set, but the data breakpoint will only trigger if a single byte is written to byte 1 and not if, for
example, a whole word is written to byte 0, 1, 2, and 3.
Figure 9-8.
A watchpoint from the program or data breakpoint modules can be used to start or stop program
or data trace. This is done using a trigger unit. The trigger unit can be configured using the
watchpoint trigger register. When the trigger unit is set to start trace upon a watchpoint, DC:TM
will be set accordingly, and trace will then be enabled. If a data watchpoint enables data trace,
the data event is not included in the data trace output, while an event which disables data trace
is included in the data trace output.
Memory access data alignment.
Byte 0
3
Half w ord 0
Double w ord byte 4 to 7
Double w ord byte 0 to 3
Byte 1
Byte A ddress
2
Word
Byte 2
1
Half w ord 1
Byte 3
0
0x8010
0x800C
0x8008
0x8004
0x8000
AVR32
121