AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 248

• 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: -

22.6.22
Name:
Access:
Address:
• RDRF: Receive Data Register Full Interrupt Mask
0: Receive Data Register Full Interrupt is disabled.
1: Receive Data Register Full Interrupt is enabled.
• TDRE: Transmit Data Register Empty Interrupt Mask
0: Transmit Data Register Empty Interrupt is disabled.
1: Transmit Data Register Empty Interrupt is enabled.
• MODF: Mode Fault Error Interrupt Mask
0: Mode Fault Interrupt is disabled.
1: Mode Fault Interrupt is enabled.
Only used in Master Mode.
• SPIOVRE: Overrun Error Interrupt Mask
0: Overrun Error Interrupt is disabled.
1: Overrun Error Interrupt is enabled.
• REND: PDC Reception End Interrupt Mask
0: Reception End Interrupt is disabled.
1: Reception End Interrupt is enabled.
• TEND: PDC Transfer End Interrupt Mask
0: Transfer End Interrupt is disabled.
1: Transfer End Interrupt is enabled.SPCK, MISO, MOSI, NPCS0, NPCS1, NPCS2, NPCS3: PIO Interrupt Mask
These bits show which pins have interrupts enabled. They are updated when interrupts are enabled or disabled by writing
to SPI_IER or SPI_IDR.
0: Interrupt is not enabled on the corresponding input pin.
1: Interrupts is enabled on the corresponding input pin.
248
31
23
15
–
–
–
7
–
AT91SAM7A1
SPI Interrupt Mask Register
SPI_IMR
Read-only
0xFFFB407C
NPCS3
30
22
14
–
–
6
–
NPCS2
TEND
29
21
13
–
–
5
NPCS1
REND
28
20
12
–
–
4
SPIOVRE
NPCS0
27
19
11
–
–
3
MODF
MOSI
26
18
10
–
–
2
TDRE
MISO
25
17
–
9
–
1
6048B–ATARM–29-Jun-06
RDRF
SPCK
24
16
–
8
–
0