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Product Brief

Élan™SC520 Microcontroller Customer Development Platform

The Élan™SC520 microcontroller customer development platform (CDP) is designed for validating features and functionality, qualifying specifications on the ElanSC520 microcontroller, and for developing customer applications. ÉlanSC520 microcontroller is a full-featured microcontroller developed for the general embedded market. Designed for medium- to high-performance applications in the telecommunications, data communications, and information appliance markets, the ÉlanSC520 microcontroller is particularly well suited for applications requiring high throughput combined with low latency and low cost.{ElanSC520 CDP}

The ÉlanSC520 microcontroller CDP contains the following features:
  • 10/100BaseT Ethernet
  • Super I/O peripheral chip containing:
    • Floppy device
    • Two serial devices (one IrDA shared with Serial Port 2)
    • One parallel device
    • Keyboard
    • Mouse
  • Three PCI card slots
  • Two ISA card slots
  • Test Interface Port (TIP) connector
  • High-speed UART port
  • Low-speed UART port
  • Hex LED display
  • Logic analyzer connector
  • SDRAM (two 168-pin DIMM sockets)
  • 16-Mbyte on-board Flash memory
  • AMDebug™(JTAG-compliant) test interface tool (connector POD1 or POD2)
  • In-circuit emulator (ICE) connector (J10) support using a PROM ICE device
  • Synchronous serial interface (SSI)
  • Integrated drive electronics (IDE)
  • Optional modules: TIP module
Élan™SC520 Microcontroller

The Élan™SC520 microcontroller utilizes a high-performance, industry-standard 33-MHz, 32-bit PCI bus for high-bandwidth I/O peripherals. The microcontroller also contains a simple 8- and 16-bit general-purpose (GP) bus for a glueless connection to low-bandwidth peripherals. The GP bus supports most legacy ISA peripherals.

With the AMDebug technology, the ÉlanSC520 microcontroller provides a full-featured, high-performance in-circuit emulation capability that enables you to test and debug your software earlier in the design cycle.

In addition to these features the ÉlanSC520 microcontroller provides a high-performance SDRAM controller, ROM/Flash controller, flexible address-mapping hardware, general-purpose bus interface, clock generation, integrated peripherals, JTAG boundary scan test interface and various system test and debug features.

10/100Base-T Ethernet Controller
The ÉlanSC520 microcontroller CDP contains the Am79C973 Pcnet"-Fast III Ethernet controller chip. The high-performance 10/100Base T Ethernet port enables the ÉlanSC520 microcontroller CDP to connect to a high-bandwidth LAN. External magnetics for a built-in transceiver (PHY) are utilized for a full-duplex implementation with an RJ45 10/100 Base T connector.

Super I/O
The Ali Super I/O Chip (Acer Laboratories, Inc., P/N M512x) provides two 16550 compatible UARTs (serial ports) one parallel port, a floppy disk interface, IrDA interface (shared with COM4), and a keyboard/mouse controller.

PCI Card Slots
Three industry-standard PCI card slots are provided to enable you to plug in most PCI-V2.2-compliant peripheral cards to speed u their design process and to reduce development time for your product. The ÉlanSC520 microcontroller CDP supports up to five PCI masters. The PCI card slots are 5V-capable (only).

ISA Card Slots (General-Purpose Bus Slots)
Two industry-standard ISA card slots enable you to plug in any off-the-shelf, low-cost ISA peripherals to achieve design simplicity and reduced development time.

Test Interface Port (TIP) Connector
The 60-pin, test interface port (TIP) connector enables you to use the optional module to develop software and debug hardware. The TIP board contains a rich set of peripherals used for debugging, diagnostics, evaluation, and reference design. The TIP board is available through your AMD sales office.

High-Speed UART
The High-Speed UART (port 0, COM1) is embedded in the ÉlanSC520 microcontroller. The High-Speed UART port enables you to communicate at a speed of up to 1.1152 Mbit/s through balanced RS-422A-compliant serial ports with other serial communication equipment, for a longer distance and faster speed. You can make the High-Speed UART port pin-compatible with the RS-232 by setting the external pin strap.

Low-Speed UART
The low-speed UART (port1, COM2) is embedded in the ÉlanSC520 microcontroller. The low-speed UART port enables you to communicate at a lower speed of up to 460 Kbit/s through a single-ended RS-232 compliant serial port. The low-speed UART is capable of high-speed, like the High-speed UART port, but is restricted through a low-speed transceiver that limits the High-Speed UART channel to a lower speed for the purpose of communicating with specific serial communications equipment.

Hexadecimal LED Display
The hexadecimal LED display is a single-byte (two digits) hexadecimal LED address at 80h and 680h. The hexadecimal LED display (error code display) provides indications for CPU status as well as debugging status, which improves the debugging process.

Logic Analyzer Connector
The logic analyzer connector enables you to use a logic analyzer to debug the application design. All signals from the ÉlanSC520 microcontroller are connected to the logic analyzer connectors, except for crystals, CLKPCIOUT (PCI clocks), and CLKMEMOUT (SDRAM clocks). AMD supports the Hewlett Packard (HP) and Tektronix logic analyzer connector without shrouds and the HP connector with shrouds.

SDRAM
The ÉlanSC520 microcontroller CDP can have a maximum of four rows on two DIMMs that connect into two industry-standard, 168-pin DIMM sockets. The DIMMs are 64-bit wide main memory, using 16/64-Mbit x 8 SDRAM chips. Note: the SDRAM DIMMs used are 64-bits wide only because they are configured as two rows each.

Flash Memory

The on-board Flash memory uses the AMD Am29LV017B and consists of the following configuration:

Two 8-Mbyte banks in a 32-bit data width consisting of eight 2-Mbit x 8 devices.

The Flash memory is used for the BIOS and/or Execute-In-Place memory that interfaces to the ÉlanSC520 microcontroller only through the SDRAM data bus MD31-MD0 or the residential Flash disk (RFD).

An additional two banks of Flash/ROM is optionally available on a 32-Mbyte daughter module that can be configured to interface to either the 32-bit SDRAM MD bus (with 8/16/32-bit data width).

AMDebug™ Tool
This in-system test feature is a standard JTAG-compliant test interface. The JTAG utilizes two types of 2-mm connectorsone 20-pin full version (POD1) and one 12-pin simple version (POD2). Both connectors are used for the AMDebug tool.

In-Circuit Emulator (ICE) Connector
The in-circuit emulator (ICE) connector (J10) is used to speed up the design development of application software. The ICE connector is a 34-pin, 1/10-inch box header and is supported by PROM ICE.

Synchronous Serial Interface
The synchronous serial interface (SSI) is a 6-pin, 1/10-inch center SIP connector (JP17) that can communicate with an external device while two on-board synchronous peripheral interface (SPI) and MICROWIRE" peripherals (EEPROM) are populated.

Integrated Drive Electronics (IDE)
One IDE channel supports two IDE devices: one master and one slave. Usually, the bootable device is set on the master and all other devices reside on the slave. The IDE uses the GP-bus.

Optional Daughter Module
The ÉlanSC520 microcontroller CDP can interface with an optional daughter module: the test interface port (TIP) module. The TIP module provides an additional resource for testing and debugging applications, diagnostics, and hardware. More information on the TIP module can be obtained in the TIP board section or through your AMD sales office.


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