AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 183

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

23.8.15
Register Name:
Access Type:
Reset Value:
• SIVR: Spurious Interrupt Vector Register
The user may store the address of a spurious interrupt handler in this register. The written value is returned in AIC_IVR in
case of a spurious interrupt and in AIC_FVR in case of a spurious fast interrupt.
23.8.16
Register Name:
Access Type:
Reset Value:
• PROT: Protection Mode
0 = The Protection Mode is disabled.
1 = The Protection Mode is enabled.
• GMSK: General Mask
0 = The nIRQ and nFIQ lines are normally controlled by the AIC.
1 = The nIRQ and nFIQ lines are tied to their inactive state.
31
23
15
31
23
15
7
–
–
–
7
–
AIC Spurious Interrupt Vector Register
AIC Debug Control Register
30
22
14
30
22
14
AIC_SPU
Read/Write
0x0
6
AIC_DEBUG
Read/Write
0x0
–
–
–
6
–
29
21
13
29
21
13
5
–
–
–
5
–
28
20
12
28
20
12
4
–
–
–
4
–
SIVR
SIVR
SIVR
SIVR
27
19
11
27
19
11
3
–
–
–
3
–
26
18
10
26
18
10
2
–
–
–
2
–
SAM7S Series [DATASHEET]
GMSK
6175M–ATARM–26-Oct-12
25
17
25
17
9
1
–
–
9
–
1
PROT
24
16
24
16
8
0
–
–
8
–
0
183