Flash Memory - Motorola MVME2700 Series Installation And Use Manual

Functional Description
5
Speaker Control
MPC750 Processor

Flash Memory

5-22
Note
Because any device on the SCSI bus can provide
and because the
status of several voltages, the LED does not directly indicate
the condition of any single fuse. If the LED flickers or goes
out, check all the fuses (polyswitches).
In MVME761 I/O mode, the MVME2700 supplies SCSI terminator power
through a polyswitch (resettable fuse) located on the P2 adapter board.
The MVME2700 base board supplies a
combined LED-mezzanine/remote-reset connector, J1. When J1 is used as
a remote reset connector with the LED mezzanine removed, the
signal can be cabled to an external speaker to obtain a beep
SPEAKER_OUT
tone. For the pin assignments of J1, refer to
The PowerPC 750 is a 32-bit microprocessor whose 32 KB on-chip cache
is composed of 32KB/32KB L1 cache. The L2 cache and 1MB of 16-bit
Flash memory reside on the MVME2700 base board. The 16MB to
256MB ECC DRAM and 4MB or 8MB of additional (64-bit) Flash
memory are located on the RAM200 memory mezzanine.
The Raven bridge controller ASIC provides the bridge between the
PowerPC microprocessor bus and the PCI local bus. Electrically, the
Raven chip is a 64-bit PCI connection. Four programmable map decoders
in each direction provide flexible addressing between the PowerPC
microprocessor bus and the PCI local bus.
The MVME2700 base board has provision for 1MB of 16-bit Flash
memory in two 8-bit sockets. The RAM200 memory mezzanine
accommodates 4MB or 8MB of additional 64-bit Flash memory.
LED on the MVME2700 monitors the
FUS
SPEAKER_OUT
Table
Computer Group Literature Center Web Site
,
TERMPWR
signal to the 14-pin
6-1.