AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 789

• Manufacturer Part Number: AT32UC3L0256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L0256

• Flash (kbytes): 256 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

31.6.8.5
31.6.8.6
31.6.8.7
Table 31-58. STATUS_INFO Contents
32145A–12/2011
Bit number
15-9
4-1
8
7
6
5
0
MEMORY_READWRITE_STATUS
BAUD_RATE
STATUS_INFO
Name
Reserved
Reserved
Protected
SAB busy
Chip erase ongoing
CPU halted
Reset status
After a MEMORY_WRITE command this response is sent by AW. The response can also be
sent after a MEMORY_READ command if AW encountered an error when receiving the
address. The response contains 3 bytes, where the first is the status of the command and the 2
next contains the byte count when the first error occurred. The first byte is encoded this way:
Table 31-55. MEMORY_READWRITE_STATUS Status Byte
Table 31-56. MEMORY_READWRITE_STATUS Details
The current baud rate in the AW. See
Table 31-57. BAUD_RATE Details
A status message from AW.
status byte
0x00
0x01
0x02
Other
Response
Response value
Additional data
Response
Response value
Additional data
Description
The protection bit in the internal flash is set. SAB access is restricted. This bit
will read as one during reset.
The SAB bus is busy with a previous transfer. This could indicate that the CPU
is running on a very slow clock, the CPU clock has stopped for some reason
or that the part is in constant reset.
The Chip erase operation has not finished.
This bit will be set if the CPU is halted. This bit will read as zero during reset.
This bit will be set if AW has reset the CPU using the RESET command.
Description
Write successful
SAB busy
Bus error (wrong address)
Reserved
Details
0xC2
Status byte and byte count (2 bytes)
Details
0xC3
Baud rate
Section 31.6.6.7
for more details.
AT32UC3L0128/256
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