Motorola MVME2600 manual Speaker Control, PM603/604 Processor

Block Diagram

module illuminates when SCSI terminator power is available. If the SCSI LED on the transition module flickers during SCSI bus operation, check fuse F1 on the P2 adapter board.

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Note Because any device on the SCSI bus can provide TERMPWR, and because the FUS LED monitors 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 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 SPEAKER_OUT signal to the 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 signal can be cabled to an external speaker to obtain a beep tone. For the pin assignments of J1, refer to Table 4-1in Chapter 4, Connector Pin Assignments.

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).

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