Meridian America Link/Customer Controlled Routing Single board computer card Application Module

58Chapter 4: Meridian Link/CCR hardware

Single board computer card (Application Module)

The first VME card slot (left-hand slot) of the Application Module is occupied by the single board computer (SBC) card. One of two cards may be installed, either the MVME147 or the MVME167 card.

MVME147SA-1

The MVME147 card consists of the following:

¥MC68030 microprocessor

¥8 Mbytes of random access memory (RAM)

¥MC68882 floating point coprocessor

¥shared dynamic random access memory (DRAM) with parity

¥time-of-day clock and calendar with battery backup

¥2 kbytes of static random access memory (SRAM)

¥four read-only memory (ROM) sockets

¥two 16-bit tick timers for periodic interrupts

¥watchdog timer

The SBC card provides the following interfaces:

¥SCSI bus interface with DMA channel to control the disk/tape unit

¥four serial I/O ports with RS-232 interface

¥Ethernet transceiver interface

The SBC card also provides the following functions:

¥VME bus interrupter

¥VME bus system controller functions

¥VME bus master interface

¥VME bus requester

553-3202-210 Standard October 1998