AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 267
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
AT91SAM7A1-AU
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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24.2.1
Name:
Access:
Address:
• PDC: PDC Clock
0: PDC clock is disabled, or user instructed PDC clock to be disabled during PDC transfers. The PDC clock is disabled
when all TCR registers reach 0 (all transfers are finished).
1: PDC clock is enabled.
24.2.2
Name:
Access:
Address:
• ARM: ARM Clock
0: ARM core clock is disabled.
1: ARM core clock is enabled.
• PDC: PDC Clock
0: PDC clock is disabled, or user instructed PDC clock to be disabled during PDC transfers. The PDC clock is disabled
when all TCR registers reach 0 (all transfers are finished).
1: PDC clock is enabled.
6048B–ATARM–29-Jun-06
31
23
15
31
23
15
–
–
–
7
–
–
–
–
7
–
PMC Enable Clock Register
PMC Disable Clock Register
PMC_ECR
Write-only
0xFFFF4050
PMC_DCR
Write-only
0xFFFF4054
30
22
14
30
22
14
–
–
–
6
–
–
–
–
6
–
29
21
13
29
21
13
–
–
–
5
–
–
–
–
5
–
28
20
12
28
20
12
–
–
–
4
–
–
–
–
4
–
27
19
11
27
19
11
–
–
–
3
–
–
–
–
3
–
26
18
10
26
18
10
–
–
–
2
–
–
–
–
2
–
AT91SAM7A1
PDC
PDC
25
17
25
17
–
–
9
–
1
–
–
9
–
1
ARM
24
16
24
16
–
–
8
–
0
–
–
–
8
–
0
267
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