AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 308

• 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: -

25.16.21 CAN Channel x Stamp Register
Name:
Access:
Offset:
• STAMP[31:0]: Stamp Value
These 32 bits stamp the date at which the message linked with Channel x has been emitted/received (depending on the
producer/consumer bit). The value is copied from the WT second counter register.
25.16.22 CAN Channel x Clear Status Register
Name:
Access:
Offset:
• ACK: Acknowledge Error Clear
0: No effect.
1: Clears acknowledge error interrupt.
• FRAME: Frame Error Clear
0: No effect.
1: Clears frame error interrupt.
• CRC: CRC Error Clear
0: No effect.
1: Clears CRC error interrupt.
• STUFF: Stuffing Error Clear
0: No effect.
1: Clears stuffing error interrupt.
308
RFRAME
31
23
15
31
23
15
7
–
–
–
7
AT91SAM7A1
CAN_STPx
Read-only
0xXX4
CAN_CSRx
Write-only
0xXX8
TXOK
30
22
14
30
22
14
6
–
–
–
6
RXOK
29
21
13
29
21
13
5
–
–
–
5
BUS
28
20
12
28
20
12
4
–
–
–
4
STAMP[31:24]
STAMP[23:16]
STAMP[15:8]
STAMP[7:0]
OVRUN
STUFF
27
19
11
27
19
11
3
–
–
3
FILLED
CRC
26
18
10
26
18
10
2
–
–
2
FRAME
DLCW
25
17
25
17
9
1
–
–
9
1
6048B–ATARM–29-Jun-06
ACK
24
16
24
16
8
0
–
–
8
–
0