Meridian Link/Customer Controlled Routing, Installation And Upgrade Manual

Page: 76 / 595

58 Chapter 4: Meridian Link/CCR hardware
553-3202-210 Standard October 1998
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