Speaker Control; Pm603/604 Processor - Motorola MVME2600 series Installation And Use Manual

module illuminates when SCSI terminator power is available. If the
LED on the transition module flickers during SCSI bus operation, check
fuse F1 on the P2 adapter board.
Note
In MVME761 I/O mode, the MVME2603/2604 supplies SCSI terminator
power through a polyswitch (resettable fuse) located on the P2 adapter
board.

Speaker Control

The MVME2603/2604 base board supplies a
14-pin combined LED-mezzanine/remote-reset connector, J1. When J1 is
used as a remote reset connector with the LED mezzanine removed, the
SPEAKER_OUT
beep tone. For the pin assignments of J1, refer to
Connector Pin

PM603/604 Processor

At present, you have the choice of a PowerPC 603 or a PowerPC 604
processor chip with 16MB to 256MB of ECC DRAM, 256KB of level 2
cache (L2 cache), and up to 9MB of Flash memory. The L2 cache and
1MB of 16-bit Flash memory reside on the MVME2603/2604 base board.
The ECC DRAM and 4MB or 8MB of additional (64-bit) Flash memory
are located on the RAM200 memory mezzanine.
The PowerPC 603 is a 64-bit processor with 32KB on-chip cache (16KB
data cache and 16KB instruction cache). The PowerPC 604 is a 64-bit
processor with 32KB on-chip cache (16KB data cache and 16KB
instruction cache).
http://www.motorola.com/computer/literature
Because any device on the SCSI bus can provide
because the LED monitors the status of several voltages, the
FUS
LED does not directly indicate the condition of any single fuse.
If the LED flickers or goes out, check all the fuses
(polyswitches).
signal can be cabled to an external speaker to obtain a
Assignments.
Block Diagram
TERMPWR
signal to the
SPEAKER_OUT
Table 4-1 in Chapter 4,
SCSI
3
, and
3-19