ICS TRIPLEX T8191系統模塊,T8191使用區域
SCSI總線終端
? MVME187通過1-安培保險絲（F1）位于P2適配器板上。保險絲是帶插座。如果保險絲熔斷，SCSI設備可能不會操作或可能功能不穩定。
? 當P2適配器板與MVME712M和SCSI總線連接到MVME712M，綠色LEDMVME712M前面板上的（DS2）在SCSI終端電源。如果在SCSI總線期間LED閃爍操作時，應檢查保險絲。
ICS TRIPLEX T8191系統模塊? 因為該板沒有SCSI終止的規定，您必須確保SCSI總線正確終止。如果您使用P2適配器，該適配器具有用于使用三個8針SIP電阻器端接SCSI線路網絡。
存儲和實時時鐘對于本產品的存儲，請確保將RTC放入節能模式。這將延長電池的壽命包含在本部分中。將部件放入省電模式模式下，使用調試器的PS命令。例如：187錯誤>ps<返回>（時鐘處于節電模式）本章涵蓋? MVME187Bug固件包簡介? 啟動和重新啟動187Bug
? 磁盤輸入/輸出支持功能? 網絡支持能力
MVME187Bug簡介本節包括：? M88000固件概述? 187Bug描述? 與基于M68000的固件的比較? 187Bug實現? 內存要求
M88000固件概述基于M88000的（88K）系列主板和系統級產品有一個共同的譜系，源自
所有基于摩托羅拉M68000的CPU上當前使用的BUG固件模塊。M88000固件系列提供了高度的
功能性和用戶友好性，但強調可移植性和易于維護。此為M88000固件系列的成員
在MVME187 RISC單板計算機上實現，被稱為MVME187Bug，或者僅僅是187Bug。
SCSI Bus Termination
? The MVME187 provides SCSI terminator power through a 1-
amp fuse (F1) located on the P2 adapter board. The fuse is
socketed. If the fuse is blown, the SCSI devices may not
operate or may function erratically.
? When the P2 adapter board is used with an MVME712M and
the SCSI bus is connected to the MVME712M, the green LED
(DS2) on the MVME712M front panel lights when there is
SCSI terminator power. If the LED flickers during SCSI bus
operation, the fuse should be checked.
? Because this board has no provision for SCSI termination,
you must ensure that the SCSI bus is terminated properly. If
you use a P2 Adapter, the adapter has sockets (R1, R2, R3) for
terminating the SCSI lines using three 8-pin SIP resistor
networks.
Storage and the Real-Time Clock
For storage of this product, be sure the RTC is put into the
power save mode. This will extend the life of the battery
contained in this part. To put the part into the power save
mode, use the PS command of the debugger. For example:
187-Bug>ps <Return>
(Clock is in Battery Save mode)This Chapter Covers
? An introduction to the MVME187Bug firmware package
? Booting and restarting 187Bug
? Disk input/output support capabilities
? Network support capabilities
Introduction to MVME187Bug
This section covers:
? Overview of M88000 firmware
? Description of 187Bug
? Comparison with M68000-based firmware
? 187Bug implementation
? Memory requirements
Overview of M88000 Firmware
The firmware for the M88000-based (88K) series of board and
system level products has a common genealogy, deriving from the
BUG firmware currently used on all Motorola M68000-based CPU
modules. The M88000 firmware family provides a high degree of
functionality and user friendliness, and yet stresses portability and
ease of maintenance. This member of the M88000 firmware family
is implemented on the MVME187 RISC Single Board Computer,
and is known as the MVME187Bug, or just 187Bug.
