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Introduction
This user's manual provides general information, preparation for use and
installation instructions, operating instructions, and a functional description
for the MVME197LE version of the MVME197 series of single board
computers.
General Description
The MVME197LE module is a double-high VMEmodule based on the
MC88110 RISC microprocessor. The MVME197LE has 32/64MB of DRAM,
1MB of FLASH memory, 8KB of static RAM (with battery backup), a time of
day clock (with battery backup), an Ethernet transceiver interface, four serial
ports with EIA-232-D interface, six tick timers, a watchdog timer, 128/256KB
of BOOT ROM, a SCSI bus interface with DMA (Direct Memory Access), a
Centronics printer port, an A16/A24/A32/D8/D16/D32 VMEbus
master/slave interface, and a VMEbus system controller.
Input/Output (I/O) signals are routed through the MVME197LE's backplane
connector P2. A P2 Adapter Board or LCP2 Adapter board routes the signals
and grounds from connector P2 to an MVME712 series transition module. The
MVME197LE supports the MVME712M, MVME712A, MVME712AM, and
MVME712B transition boards (referred to here as the MVME712X, unless
separately specified). The MVME197LE also supports the MVME712-12 and
MVME712-13 (referred to as the MVME712-XX, unless separately specified).
These transition boards provide configuration headers, serial port drivers, and
industry standard connectors for the I/O devices.
The MVME197LE modules have eight ASICs (Application-Specific Integrated
Circuits) described in the following order: BusSwitch, DCAM, ECDM, PCC2,
and VME2.
The BusSwitch ASIC provides an interface between the processor bus
(MC88110 bus) and the local peripheral bus (MC68040 compatible bus). Refer
to the MVME197LE block diagram (Figure 1-1). It provides bus arbitration for
the MC88110 bus and serves as a seven level interrupt handler. It has
programmable map decoders for both busses, as well as write post buffers on
each, two tick timers, and four 32-bit general purpose registers.
MVME197LE/D21-1
GENERAL INFORMATION
1
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