AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 311

• Manufacturer Part Number: AT91SAM7A1-AU
• Description: IC ARM7 MCU 32BIT ROMLESS144LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7A1-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: AT91SAM7A1-EK - BOARD EVAL FOR AT91SAM7A1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

• RFRAME: Remote Frame
0: No remote frame received.
1: A remote frame has been received.
Note:
• DLCW: DLC Warning
0: No DLC warning.
1: DLC warning. Last message accepted with a different DLC than programmed in the CAN channel control register
(CAN_CRx).
This bit does not generate an interrupt.
• FILLED: Reception Buffer Filled
0: No frame has been received since last clear of FILLED bit.
1: A frame has been received while the corresponding CAN channel is configured in overwrite mode and as a consumer
(PCB = 0 and OVERWRITE = 1 in CAN_CRx). This flag can be enabled only when OVERWRITE mode is selected.
• OVRUN: Overrun
0: No frame has been received while FILLED flag is set to logical 1.
1: A frame has been received while FILLED flag is set to logical 1.
This flag can be raised only when OVERWRITE mode is selected.
This bit does not generate an interrupt.
6048B–ATARM–29-Jun-06
The RFRAME flag rises during the reception of remote frames, whereas the reception is not completed. On reception of a
remote frame, software should wait for the RFRAME and RXOK flags in order to be sure that the received frame is not corrupted
and that the identifier and DLC fields have been updated according to the received remote frame.
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