AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 59

• 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: -

10.5.5
Name:
Access:
Address:
• DRP: Data Read Protocol
0: Standard read protocol for all external memory devices enabled.
1: Early read protocol for all external memory devices enabled.
• ALE[2:0]: Address Line Enable
These bits indicate the number of valid chip select lines.
6048B–ATARM–29-Jun-06
ALE2
0
1
1
1
31
23
15
–
–
–
7
–
AMC Memory Control Register
AMC_MCR
Read/Write
0xFFE0 0024
ALE1
0
1
1
x
30
22
14
–
–
–
6
–
ALE0
x
x
0
1
29
21
13
–
–
–
5
–
Valid Address Bits
ADD[21:0]
ADD[21:0]
ADD[20:0]
ADD[19:0]
DRP
28
20
12
–
–
–
4
Maximum Addressable Space
27
19
11
–
–
–
–
3
per Chip Select Line
4 Mbytes
4 Mbytes
2 Mbytes
1 Mbytes
26
18
10
–
–
–
2
ALE[2:0]
AT91SAM7A1
25
17
–
–
9
–
1
NCS[3:0], CS6, CS7
Valid Chip Select
NCS[3:0], CS6
NCS[3:0]
NCS[3:0]
24
16
–
–
8
–
0
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