AT91SAM7A2
| Status: | Production |
| SRAM (Bytes): | 16K |
| External Bus Interface: | 1 |
| CAN: | 4 |
| 10-bit ADC Channels: | 16 |
| Peripheral DMA Channels: | 10 |
| : | LQFP 176 |
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Not recommended for new designs.The AT91SAM7A2 features a 27 MIPS ARM7TDMI processor with 16K bytes of SRAM, fully programmable External Bus Interface (EBI) and a rich peripheral set including four CAN controllers (2.0A and 2.0B Full CAN) and four-channel 16-bit Pulse Width Modulation. It provides a powerful, cost-effective solution to many compute-intensive embedded control applications in the automotive and industrial world.
 | ARM7TDMI Technical Reference Manual (284 pages, updated 4/01) | |
| AT91SAM7A2 Summary (16 pages, updated 07/04) | |
| AT91SAM7A2 Mature (402 pages, revision B, updated 3/07) | |
| AT91 Assembler Code Startup Sequence for C Code Applications Software (16 pages, revision A, updated 6/02) Provides a C startup sequence written in assembler code and based on the C startup sequence for the AT91 Evaluation Board working with the ARM ADS V1.1 Development Tools. | |
|  | AT91-AN01: Using the Two-wire interface (TWI) in Master Mode on AT91SAM Microcontrollers (32 pages, revision B, updated 08/07) This application note is an aid for developers in the design of a system using the Two-wire Interface (TWI) of Atmel's AT91SAM family of microcontroller products with Atmel's Two-wire Interface slave devices and I2C-Bus compatible slave devices. It describes the connection with a digital temperature sensor (LM75), a Real Time Clock (DS1337), a Graphic LCD Module(PCF8558) and a 1Mbit Two-wire Serial EEPROM (AT24C1024). |
| Connecting an I2S-Compatible Audio DAC to the AT91x40 Series Microcontroller (13 pages, revision A, updated 5/02) Provides the procedure to construct the interface between a stero audio digital-to-analog converter and an AT91x40 Series Microcontroller. | |
| | Software DMA Implementation (8 pages, revision A, updated 10/98) Describes two different ways to implement a DMA function in software using the ARM Fast Interrupt (FIQ) as the external event. |
| | Using the Serial Peripheral Interface with AT91SAMxx Devices (11 pages, revision B, updated 8/06) Describes initializaton of the SPI, main SPI features are summarized and characteristics that may be difficult to use are detailed. A software example of an interconnection between two SPIs is also described. |
| Audio and Video CODEC Licensing (8 pages, revision B, updated 8/09) This guide gives Atmel customers information about, as well as an overview of, the licensing of patents that cover technologies such as MP3 and WMA that run on Atmel’s AVR or ARM Thumb based microcontrollers. A video or audio technology involves not only one patent but rather many different ones. Because of this a licenser needs to license a pool of patents that cover the desired technology. These patent pools are offered from dedicated companies to ease the licensing process. | |
Other Related Application Notes | AT91SAM Product Guide (Brochure, 2 pages, revision G, updated 2/10) Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors. | |
Evaluation Kit: | AT91SAM7A2-EK |
Software Files: | ATMEL_PLL_LFT_Filter_CALCULATOR_AT91_2v91.zip |
