Ampro Corporation 486E manual Ethernet LAN Interface, Byte-Wide Socket and Solid State Disk SSD

Little Board™/486e Technical Manual

Ethernet LAN Interface

The Ethernet LAN interface uses Carrier Sense, Multiple Access/Collision Detect (CSMA/CD) for node access and operates at a 10M-bits/second data rate. The Ethernet interface has the following features:

!Contains the logic necessary to send and receive data packets

!Controls CSMA/CD network access technology

!Meets IEEE 802.3 (ANSI 8802-3) Ethernet standards

!Supports the Ethernet twisted-pair standard (10BaseT)

Because Ethernet is preferred in many applications due to its high data rate and broad level of compatibility, Ampro supplies the Little Board/486e CPU with drivers and utilities to ensure compatibility with a wide range of popular operating systems and network operating systems. The Ethernet interface is based on the SMC9000-series single-chip Ethernet controller. DOS software drivers for ODI, NDIS, packet, and TCP/IP are supplied with the Little Board/486e Development Kit. OS support includes QNX, UNIX, Windows®9x, Windows NT™, Windows CE and DOS.

The Ethernet interface provides boot PROM capability. When implemented, the embedded system boots directly from the network, eliminating the need for a local floppy, hard drive, or SSD.

Byte-Wide Socket and Solid State Disk (SSD)

The byte-wide memory socket included with the Little Board/486e CPU allows you to install a bootable “solid state disk” (SSD) for installation of embedded application software. The SSD supports:

!EPROM

!FLASH EPROM

!Battery-backed SRAMs

Using Ampro’s SSD Support Software, any DOS-based application, including the operating system, utilities, drivers, and application programs, can be run from SSD without modification. SSD operation is also supported by a number of real-time operating systems.

The board’s 32-pin byte-wide socket accepts 32-pin byte-wide memory devices. It accommodates

128K bytes to 1M byte devices and supports:

!CMOS SRAM

!SRAM non-volatile modules

!EPROM

!FLASH EPROM

1–4