AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 118

• 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: -

16.5.1
Name:
Access:
Address:
• PRIOR[2:0]: Priority Level
These bits program the priority level (from 0-lowest to 7-highest) of all the interrupt sources. The priority level is not used for
the FIQ in the SMR0.
• SRCTYP[1:0]: Interrupt Source Type
Note:
118
31
23
15
–
–
–
7
–
1. All the interrupts used by internal peripherals are considered as internal interrupts and subsequently the SRCTYP1 bit is
AT91SAM7A1
GIC Source Mode Register
0
0
1
1
always read at 0.
GIC_SMR0 ... GIC_SMR31
Read/Write
0xFFFFF000 ... 0xFFFFF07C
SRCTYP[1:0]
30
22
14
–
–
–
6
SRCTYP[1:0]
(1)
0
1
0
1
29
21
13
–
–
–
5
28
20
12
–
–
–
4
–
Positive edge triggered
Positive edge triggered
High level sensitive
High level sensitive
Internal Sources
27
19
11
–
–
–
3
–
26
18
10
–
–
–
2
Negative edge triggered
Positive edge triggered
PRIOR[2:0]
High level sensitive
External Sources
Low level sensitive
25
17
–
–
9
–
1
6048B–ATARM–29-Jun-06
24
16
–
–
8
–
0