AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 238

• 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: -

22.6.11
Name:
Access:
Address:
22.6.12
Name:
Access:
Address:
• SPCK: SPCK Pin
0: The pin SCK is not configured as an open drain.
1: The pin SCK is configured as an open drain.
• MISO: MISO Pin
0: The pin MISO is not configured as an open drain.
1: The pin MISO is configured as an open drain.
• MOSI: MOSI Pin
0: The pin MOSI is not configured as an open drain.
1: The pin MOSI is configured as an open drain.
• NPCS0: NPCS0 Pin
0: The pin NPCS0/NSS is not configured as an open drain.
1: The pin NPCS0/NSS is configured as an open drain.
• NPCSx [x = 1..3]: NPCSx Pin
0: The pin NPCSx is not configured as an open drain.
1: The pin NPCSx is configured as an open drain.
238
31
23
15
–
–
–
7
–
AT91SAM7A1
SPI PIO Multidriver Enable Register
SPI PIO Multidriver Disable Register
SPI_MDER
Write-only
0xFFFB4040
SPI_MDDR
Write-only
0xFFFB4044
NPCS3
30
22
14
–
–
6
–
NPCS2
29
21
13
–
–
5
–
NPCS1
28
20
12
–
–
4
–
NPCS0
27
19
11
–
–
3
–
MOSI
26
18
10
–
–
2
–
MISO
25
17
–
9
–
1
–
6048B–ATARM–29-Jun-06
SPCK
24
16
–
8
–
0
–