IS200SRTDH2ACB燃机通用模块，GE中文使用说明

SCSI接口MVME162通过工业标准SCSI总线支持大容量存储子系统。这些子系统可能包括硬盘和软盘驱动器、流式磁带驱动器和其他大容量存储设备。SCSI接口使用NCR 53C710 SCSI输入/输出控制器实现。NCR 53C710的支持功能由MCchip提供。提到NCR 53C710用户指南和MVME162嵌入式控制器详细编程信息的程序员参考指南。

IS200SRTDH2ACB燃机通用模块提到MVME712-12、MVME712-13、MVME712A、MVME712AM和MVME712B转换模块和LCP2适配器板用户手册或MVME712M转换模块和P2适配器板引脚用户手册转换模块SCSI连接器的分配。SCSI终止配置系统的个人必须确保SCSI总线两端正确终止。MVME162为P2适配器上的SCSI总线终端提供插槽板或LCP2适配器板。如果SCSI总线终止于适配器板，然后，终端电阻器必须安装在适配器板上+5V电源向SCSI总线提供TERMPWR信号和端接电阻器通过适配器板上的保险丝。当地资源MVME162包括许多用于本地处理器的资源。其中包括滴答定时器、软件可编程硬件中断、看门狗定时器、，和本地总线超时。可编程滴答定时器系统中提供了四个分辨率为1µs的32位可编程滴答计时器可选配置中提供了MCchip和两个32位可编程滴答计时器VMEchip2。滴答定时器可编程为生成周期性中断处理器。请参阅MCchip和VMEchip2说明在MVME162嵌入式控制器程序员参考指南中编程信息。看门狗定时器MCchip和可选VMEchip2中都提供了看门狗定时器。计时器独立但并行运行。当看门狗定时器如果启用，则必须在编程时间内通过软件重置，或他们将暂停。看门狗定时器可以编程生成系统复位信号、本地复位信号或板故障信号（如果超时）。参考嵌入MVME162中的VMEchip2和MCchip描述详细编程信息的控制器程序员参考指南。

SCSI Interface

The MVME162 supports mass storage subsystems through the industrystandard SCSI bus. These subsystems may include hard and floppy disk

drives, streaming tape drives, and other mass storage devices. The SCSI

interface is implemented using the NCR 53C710 SCSI I/O controller.

Support functions for the NCR 53C710 are provided by the MCchip. Refer to

the NCR 53C710 user’s guide and to the MVME162 Embedded Controller

Programmer’s Reference Guide for detailed programming information. Refer to

the MVME712-12, MVME712-13, MVME712A, MVME712AM, and

MVME712B Transition Modules and LCP2 Adapter Board User’s Manual or to the

MVME712M Transition Module and P2 Adapter Board User’s Manual for the pin

assignments of the transition module SCSI connectors.

SCSI Termination

The individual configuring the system must ensure that the SCSI bus is

properly terminated at both ends.

The MVME162 provides sockets for SCSI bus terminators on the P2 adapter

board or the LCP2 adapter board. If the SCSI bus ends at the adapter board,

then termination resistors must be installed on the adapter board. +5V power

to the SCSI bus TERMPWR signal and termination resistors is provided

through a fuse located on the adapter board.

Local Resources

The MVME162 includes many resources for the local processor. These include

tick timers, software programmable hardware interrupts, watchdog timer,

and local bus timeout.Programmable Tick Timers

Four 32-bit programmable tick timers with 1 µs resolution are provided in the

MCchip and two 32-bit programmable tick timers are provided in the optional

VMEchip2. The tick timers can be programmed to generate periodic

interrupts to the processor. Refer to the MCchip and VMEchip2 descriptions

in the MVME162 Embedded Controller Programmer’s Reference Guide for detailed

programming information.

Watchdog Timer

A watchdog timer is provided in both the MCchip and the optional VMEchip2.

The timers operate independently but in parallel. When the watchdog timers

are enabled, they must be reset by software within the programmed time or

they will time out. The watchdog timers can be programmed to generate a

SYSRESET signal, local reset signal, or board fail signal if they time out. Refer

to the VMEchip2 and MCchip descriptions in the MVME162 Embedded

Controller Programmer’s Reference Guide for detailed programming information.