AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 73

• 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: -

12.4.2
Name:
Access:
Address:
12.4.3
Name:
Access:
Address:
This register gives the last cause of reset.
• RESET[7:0]: Cause of Reset
0x6C: External reset on NRESET pin.
0x53: Internal watchdog reset.
6048B–ATARM–29-Jun-06
31
23
15
31
23
15
0
0
0
7
0
–
–
–
7
SFM Extended Chip ID Register
SFM Reset Status Register
SFM_EXID
Read-only
0xFFF00004
SFM_RSR
Read-only
0xFFF00008
30
22
14
30
22
14
0
0
0
6
0
–
–
–
6
29
21
13
29
21
13
0
0
0
5
0
–
–
–
5
28
20
12
28
20
12
0
0
1
4
0
–
–
–
4
RESET[7:0]
27
19
11
27
19
11
0
0
0
3
0
–
–
–
3
26
18
10
26
18
10
0
0
0
2
0
–
–
–
2
AT91SAM7A1
25
17
25
17
1
0
9
0
1
1
–
–
9
–
1
24
16
24
16
0
0
8
0
0
0
8
0
73