AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 180

• 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

23.8.9
Register Name:
Access Type:
Reset Value:
• NFIQ: NFIQ Status
0 = nFIQ line is deactivated.
1 = nFIQ line is active.
• NIRQ: NIRQ Status
0 = nIRQ line is deactivated.
1 = nIRQ line is active.
23.8.10
Register Name:
Access Type:
• FIQ, SYS, PID2-PID3: Interrupt Enable
0 = No effect.
1 = Enables corresponding interrupt.
PID31
PID23
PID15
PID7
31
23
15
31
23
15
–
–
–
7
–
7
AIC Core Interrupt Status Register
AIC Interrupt Enable Command Register
PID30
PID22
PID14
PID6
30
22
14
30
22
14
AIC_CISR
Read-only
0x0
–
–
–
6
–
AIC_IECR
Write-only
6
PID29
PID21
PID13
PID5
29
21
13
29
21
13
–
–
–
5
–
5
PID28
PID20
PID12
PID4
28
20
12
28
20
12
–
–
–
4
–
4
PID27
PID19
PID11
PID3
27
19
11
27
19
11
–
–
–
3
–
3
PID26
PID18
PID10
PID2
26
18
10
26
18
10
–
–
–
2
–
2
SAM7S Series [DATASHEET]
PID25
PID17
NIRQ
PID9
SYS
6175M–ATARM–26-Oct-12
25
17
25
17
–
–
9
–
1
9
1
PID24
PID16
NIFQ
PID8
FIQ
24
16
24
16
–
–
8
–
0
8
0
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