AT32UC3B0256 Atmel Corporation, AT32UC3B0256 Datasheet - Page 132
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AT32UC3B0256
Manufacturer Part Number
AT32UC3B0256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3B0128.pdf
(684 pages)
5.AT32UC3B0128.pdf
(107 pages)
Specifications of AT32UC3B0256
Flash (kbytes)
256 Kbytes
Pin Count
64
Max. Operating Frequency
60 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
44
Ext Interrupts
44
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
4
Twi (i2c)
1
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3B0256-A2UT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
AT32UC3B0256-U
Manufacturer:
ATMEL
Quantity:
543
Part Number:
AT32UC3B0256-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3B0256-Z2UT
Manufacturer:
ATMEL
Quantity:
444
9.6.2
9.6.3
9.6.3.1
9.6.3.2
32002F–03/2010
Using data trace channels as watchpoints
Messages
Data Trace, Data Write (DTDW)
Data Trace, Data Write with Sync (DTDWS)
Data Trace is enabled for address ranges (trace channels) specified by pairs of Data Trace Start
and End Address registers (DTSA/DTEA). Each data access within that boundary will generate
an action as specified by the corresponding bits in the Data Trace Control register (DTC). The
AVR32 OCD system currently supports two data trace channels.
While each channel can be used to trigger data trace messages, it is also possible to trigger
watchpoint messages, providing flexibility when using the OCD system. Watchpoints can be
ranged, i.e. trigger on all accesses between DTSA through DTEA, or trigger on a single location,
if DTSA and DTEA are written to the same value.
Writing TnWP to one enables a watchpoint on accesses for data trace channel n. The watch-
point message is sent as a vendor defined trace watchpoint message.
It is possible to enable both trace and watchpoint on the same channel, but typically, only one of
the options will be used.
The Trace Watchpoint Hit message is described in
This message is output by the target processor when it detects a memory write that matches the
OCD system’s data trace attributes.
Table 9-43.
This message is an alternative to the Data Trace, Data Write Message. It is output instead of a
Data Trace, Data Write Message whenever a memory write occurs that matches the debug
logic’s data trace attributes, and when one of the following conditions has occurred:
Data Trace, Data Write message
Packet
Size
8 / 16 /
32
32
2
6
1. The processor has exited from reset. This synchronization message is required to allow
2. When data trace is enabled during normal execution of the embedded processor.
the unique portion of the data write address of following Data Trace, Data Write Mes-
sages to be correctly interpreted by the tool.
Packet
Name
DATA
U-ADDR
DSZ
TCODE
Data Trace, Data Write message
Packet
Type
Variable
Variable
Fixed
Fixed
Direction: From target
Description
The data value written. The size will vary depending on the load
/ store instruction being traced.
The unique portion of the data write address, which is relative to
the previous Data Trace Message (read or write).
Data size:
00 = 8 bits
01 = 16 bits
10 = 32 bits
Value=5
Section 9.4.5.2 on page
122.
AVR32
132