Ethernet minimodule with ARM7TDMI <b>AT91SAM7x</b> from Atmel

Written by andi.eti

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Created Monday, 11 August 2008

Last updated Monday, 11 August 2008

Title

Ethernet minimodule with ARM7TDMI <b>AT91SAM7x</b> from Atmel

Description

Features

MMnetSAM7x minimodule

- Complete, ready to use microprocessor system
- Fast ARM7TDMI microcontroller AT91SAM7x
- Up to 512kB Flash memory and up to 128kB RAM
- Onboard Ethernet PHY and RJ45 connector with embedded magnetics
- Serial DataFlash memory 64Mb (8MB)
- Reset circuit
- Built-in 18.432MHz crystal resonator
- Onboard USB pull-up circuit
- Built-in voltage regulator 3.3V 400mA
- Module supply voltage: 3.3V or 3.8 - 16V
- 2 LED diodes indicating: power, LAN Full Duplex activity
- 2 x 40 terminals with 0.1" (2.54mm) pitch fitting every prototype board
- Small dimensions: 56mm x 48mm
- Available evaluation board and sample applications

AT91SAM7x microcontroller

- ARM7TDMI ARM Thumb Processor
- High-performance 32-bit RISC Architecture
- Leader in MIPS/Watt
- Fully Static Operation: Up to 55 MHz at 1.65V and 85°C Worst Case Conditions
Internal High-speed Flash
- 128 to 512kB In System Programmable Flash memory
- Internal High-speed SRAM, Single-cycle Access at Maximum Speed
- 32 kB to 128kB of SRAM
- Memory Controller (MC)
- Reset Controller (RSTC)
- Clock Generator (CKGR)
- Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and one PLL
- Power Management Controller (PMC)
- Advanced Interrupt Controller (AIC)
- Debug Unit (DBGU)
- Periodic Interval Timer (PIT)
- Windowed Watchdog (WDT)
- Real-time Timer (RTT)
- Two Parallel Input/Output Controllers (PIO)
- Thirteen Peripheral DMA Controller (PDC) Channels
- One USB 2.0 Full Speed (12 Mbits per second) Device Port
- One Ethernet MAC 10/100 base-T
- One Part 2.0A and Part 2.0B Compliant CAN Controller
- One Synchronous Serial Controller (SSC)
- Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)
- Two Master/Slave Serial Peripheral Interfaces (SPI)
- One Three-channel 16-bit Timer/Counter (TC)
- One Four-channel 16-bit Power Width Modulation Controller (PWMC)
- One Two-wire Interface (TWI)
- One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os
- SAM-BA Boot Assistance
- IEEE 1149.1 JTAG Boundary Scan on All Digital Pins
- 5V-tolerant I/Os, Including Four High-current Drive I/O lines, Up to 16 mA Each
- Power Supplies
- Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and Ext Comp
- Available in 100-lead LQFP Green and 100-ball TFBGA Green Packages

Ethernet PHY DM9161A

- Fully comply with IEEE 802.3 / IEEE 802.3u 10Base-T/100Base-TX
- Support MDI/MDI-X auto crossover function
- IEEE 802.3u Auto-Negotiation
- Selectable MII or RMII
- Selectable full-duplex or half-duplex operation
- LED status outputs indicate Link/Activity
- Single Supply of 3.3V
- Low power consumption
- Low power modes
- Campatybile with 3.3V and 5.0V tolerant I/Os

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