AT32UC3B0256-A2UR Atmel, AT32UC3B0256-A2UR Datasheet - Page 69

• Manufacturer Part Number: AT32UC3B0256-A2UR
• Description: MCU AVR32 256K FLASH 64-TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B0256-A2UR

• Package / Case: 64-TQFP, 64-VQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 44
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Package: 64TQFP
• Device Core: AVR32
• Family Name: AT32
• Maximum Speed: 60 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 44
• Interface Type: I2S/SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.6.18
Name:
Access Type:
Offset:
Reset Value:
• OCDRST: OCD Reset
• JTAG: JTAG reset
• WDT: Watchdog Reset
• EXT: External Reset Pin
• BOD: Brown-out Reset
• POR Power-on Reset
32059K–03/2011
31
23
15
7
-
-
-
-
• The CPU was reset because the RES strobe in the OCD Development Control register has been written to one.
• The CPU was reset by setting the bit RC_CPU in the JTAG reset register.
• The CPU was reset because of a watchdog time-out.
• The CPU was reset due to the RESET pin being asserted.
• The CPU was reset due to the supply voltage being lower than the brown-out threshold level.
• The CPU was reset due to the supply voltage being lower than the power-on threshold level.
Reset Cause Register
30
22
14
RCAUSE
Read-only
0x140
Latest Reset Source
6
-
-
-
-
29
21
13
5
-
-
-
-
JTAG
28
20
12
4
-
-
-
WDT
27
19
11
3
-
-
-
EXT
26
18
10
2
-
-
-
BOD
25
17
9
1
-
-
-
AT32UC3B
OCDRST
POR
24
16
8
0
-
-
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