ICS TRIPLEX T8191系统模块,T8191使用区域
SCSI总线终端
❏ MVME187通过1-安培保险丝（F1）位于P2适配器板上。保险丝是带插座。如果保险丝熔断，SCSI设备可能不会操作或可能功能不稳定。
❏ 当P2适配器板与MVME712M和SCSI总线连接到MVME712M，绿色LEDMVME712M前面板上的（DS2）在SCSI终端电源。如果在SCSI总线期间LED闪烁操作时，应检查保险丝。
ICS TRIPLEX T8191系统模块❏ 因为该板没有SCSI终止的规定，您必须确保SCSI总线正确终止。如果您使用P2适配器，该适配器具有用于使用三个8针SIP电阻器端接SCSI线路网络。
存储和实时时钟对于本产品的存储，请确保将RTC放入节能模式。这将延长电池的寿命包含在本部分中。将部件放入省电模式模式下，使用调试器的PS命令。例如：187错误>ps<返回>（时钟处于节电模式）本章涵盖❏ MVME187Bug固件包简介❏ 启动和重新启动187Bug
❏ 磁盘输入/输出支持功能❏ 网络支持能力
MVME187Bug简介本节包括：❏ M88000固件概述❏ 187Bug描述❏ 与基于M68000的固件的比较❏ 187Bug实现❏ 内存要求
M88000固件概述基于M88000的（88K）系列主板和系统级产品有一个共同的谱系，源自
所有基于摩托罗拉M68000的CPU上当前使用的BUG固件模块。M88000固件系列提供了高度的
功能性和用户友好性，但强调可移植性和易于维护。此为M88000固件系列的成员
在MVME187 RISC单板计算机上实现，被称为MVME187Bug，或者仅仅是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.
