MVME197SP
/DP
Single Board
Computer
MVME197SP/DP Single Board
Computer
Each MVME197
module
is a
double-high
VMEmodule
based
on
the
MC88110
RISC (Reduced Instruction Set
Computer)
microprocessor. The
MVME197DP
/SP
module
series have:
0 128/256MB of
onboard
DRAM
with
programmable
ECC (Error Checking
and
Correction)
0 256KB of external cache
memory
for each MC88110/MC88410
microprocessor
I cache controller combination (note
that
the
MVME197SP
version
has
only
one
MC88110 I MC88410 device combination)
0 1MB of flash
memory,
8KB
of static RAM (with
battery
backup), a time of
day
clock (with
battery
backup)
0
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
Al6/
A24/
A32/D8/
Dl6/D32
VMEbus
master/slave
interface,
and
a VMEbus
system
controller.
Front Panel Switches, Indicators, and Connectors
There are
two
push-button
switches
and
six LEDs
on
the front
panel
of
the
MVME197SP
/DP.
The
switches
are
RESET
and
ABORT.
Switch S3
The RESET
switch
(S3)
resets all
onboard
devices
and
drive
the
SYSRESET*
signal
if
the
board
is
the
system
controller. The RESET switch (53) will reset all
onboard
devices except
the
DCAM
and
ECDM
if
the
board
is
not
the
system
controller.
The
VMEchip2 generates
the
SYSREST*
signal. The BusSwitch
combines
the
VMEchip2local reset,
the
power
up
reset,
and
the reset
switch
to
generate
a local
board
reset.
Switch
S2
The
ABORT switch (52)
can
generate
an
interrupt
to
CPUO
via
the
NMI* signal.
It
is
normally
used
to
abort
program
execution
and
return
to the debugger.
This capability is controlled
via
the
ABORT register
in
the
BusSwitch. ·
S900RF/D4
2-21
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