AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet
AT91SAM7A1-AU
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AT91SAM7A1-AU Summary of contents
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... Core, Memory and Analog Voltage Range – 3 5.5V Compliant I/Os – -40° to +85°C Operating Temperature Range • Available in a 144-pin LQFP AT91 ARM Thumb-based Microcontrollers AT91SAM7A1 Summary NOTE: This is a summary document. The complete document is available on the Atmel website at www.atmel.com. 6048C–ATARM–29-Jun-06 ...
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... The device is manufactured using high-density CMOS technology. By combining the ARM7TDMI processor with an on-chip RAM and a wide range of peripheral functions on a monolithic chip, the AT91SAM7A1 is a powerful device that provides a flexible, cost-effective solution to many compute-intensive embedded control applications in the indus- trial world. ...
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... Block Diagram Figure 2-1. AT91SAM7A1 Block Diagram I/O Power VDDIO Supply GND SPCK/MPIO MISO/MPIO MOSI/MPIO NPCS0/MPIO PIO NPCS1/MPIO NPCS2/MPIO 2 PDC NPCS3/MPIO Channels RXD0/MPIO USART0 TXD0/MPIO PIO 2 PDC SCK0/MPIO Channels RXD1/MPIO USART1 TXD1/MPIO PIO 2 PDC SCK1/MPIO Channels RXD2/MPIO USART2 TXD2/MPIO PIO 2 PDC ...
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... ADD4 PC3T02 32 ADD5 PC3T02 33 ADD8 PC3T02 34 ADD20/CS7 PC3T02 35 ADD9 PC3T02 36 ADD10 PC3T02 Notes: 1. Pins 7, 28 and 43 are connected internally. 2. Pins 6, 27 and 127 are connected internally. AT91SAM7A1 4 Pin Name Pad Pin 37 ADD11 PC3T02 73 38 ADD12 PC3T02 74 39 ADD13 PC3T02 75 40 ADD14 ...
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... USART1 receive line I/O (I) USART1 transmit line I/O (I) USART2 clock line I/O (I) USART2 receive line I/O (I) USART2 transmit line I/O (I) Capture input I/O (I) Pulse Width Modulation output I/O (I) AT91SAM7A1 (1) (1) Level Comments (Z) The EBI is tri-stated when NRESET ( logical low level. Internal pull- downs on data bus bits ...
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... NRESET logical 0. This allows external equipment to access the external memory devices (e.g., for Flash programming the application to add an external pull-up on the chip select lines in order to avoid EBI con- flicts at reset. 3. The EBI data bus D[15:0] has an internal pull-down. AT91SAM7A1 6 Function Type ...
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... The processor's internal architecture and the ARM and Thumb instruction sets are described in the ARM7TDMI datasheet. The ARM Standard In-Circuit-Emulation debug interface is sup- ported via the ICE port of the AT91SAM7A1 microcontroller (This is not a standard IEEE 1149.1 JTAG Boundary Scan interface). 6. Advanced Memory Controller (AMC) The AT91SAM7A1 embeds 4 Kbytes of internal SRAM ...
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... Parallel I/O Controller (PIO) The AT91SAM7A1 has 49 configurable I/O lines. Thirty-two pins (unified PIO) on the AT91SAM7A1 are dedicated as general purpose I/O pins (UPIO0 - UPIO31). Other I/O lines are multiplexed with an external signal of a peripheral to optimize the use of available package pins. The unified PIO pins are controlled by a dedicated module; the others pins are configured in each module ...
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... Serial Peripheral Interface (SPI) The AT91SAM7A1 features an SPI that provides communication with external devices in master or slave mode. The SPI has four external chip selects that can be connected devices. The data length is programmable from 8-bit to 16-bit. As for the USART, a two-channel PDC is used to move data directly between memory and the SPI without CPU intervention for maximum real-time processing throughput ...
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... This allows a 32-bit register to have sufficient range to cater for hour period. 19. Watchdog (WD) The AT91SAM7A1 has an internal watchdog that can be used to prevent system lock-up if the software becomes trapped in a deadlock. 20. Special Function Module (SFM) The AT91SAM7A1 provides registers which implement the following special functions: • ...
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... ARM Standard Embedded In Circuit Emulation is supported via the ICE port connected to a host computer via an external ICE Interface. In ICE Debug Mode, the ARM core responds with a non-JTAG chip ID which identifies the core to the ICE system. This is not JTAG IEEE 1149.1 compliant. 6048C–ATARM–29-Jun-06 AT91SAM7A1 11 ...
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... Packaging Information Figure 24-1. 144-lead LQFP Package Orientation (Top View AT91SAM7A1 12 144 37 109 108 73 72 6048C–ATARM–29-Jun-06 ...
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... Nom Max Symbol 1.60 c 0.15 L 1.40 1. 0.20 E2 3.5 7 aaa bbb 12 13 ccc 12 13 ddd AT91SAM7A1 bbb 0.25 L1 Min Nom 0.09 0.45 0.60 1.00 REF 0.20 0.17 0.20 0.50 BSC 17.50 17.50 Tolerances of form and position 0.20 0.20 0.08 0.08 Max 0.20 ...
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... Recommended package reflow conditions depend on package thickness and volume. See Table 25-2. Table 25-2. Parameter Convection VPR IR/Convection Notes: A maximum of three reflow passes is allowed per component. AT91SAM7A1 14 gives the recommended soldering profile from J-STD-20. Soldering Profile Convection or IR/Convection 3 C/sec. max. 120 sec. max 60 sec. to 150 sec. 10 sec sec. ...
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... Ordering Information Table 26-1. AT91SAM7A1 Ordering Information Ordering Code AT91SAM7A1-AU 6048C–ATARM–29-Jun-06 Package Package Type LQFP144 Green AT91SAM7A1 Temperature Operating Range Industrial (- + ...
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... Revision History Doc. Rev. Date 6048AS 22-Jul-04 6048BS 03-Mar-05 6048CS 29-JUN-06 AT91SAM7A1 16 Comments First issue. Removed Preliminary status. Changed package from TQFP to LQFP, type Green. Removed references to Automotive applications. “Description” on page 2 replaced with features and description from full datasheet. Change Request Ref. “ ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...