ICS TRIPLEX T9402冗余控制模塊，T9402使用指導(dǎo)
內(nèi)存配置默認(rèn)值。動(dòng)態(tài)RAM夾層板的默認(rèn)配置將使用從使用ENV參數(shù)“的基址”選擇的地址開(kāi)始的最大內(nèi)存大小動(dòng)態(tài)內(nèi)存”。基址參數(shù)默認(rèn)為0。較小的夾層將緊跟在內(nèi)存映射中較大的上方。如果相同尺寸和類型的夾層存在時(shí)，第一個(gè)（最靠近電路板）映射到選定的基址。如果夾層存在相同大小但不同類型（奇偶校驗(yàn)和ECC），奇偶校驗(yàn)類型將映射到隨后是選定的基址和ECC類型的夾層。
ICS TRIPLEX T9402冗余控制模塊SRAM不默認(rèn)為內(nèi)存映射中與動(dòng)態(tài)RAMENV相鄰的位置詢問(wèn)以下一系列問(wèn)題，以設(shè)置MVME172的VMEbus接口系列模塊。您應(yīng)該具備VMEchip2的工作知識(shí)，如MVME172 VME嵌入式控制器程序員參考指南配置本系列還包括設(shè)置ROM和閃存訪問(wèn)時(shí)間的問(wèn)題從屬地址解碼器用于允許另一個(gè)VMEbus主機(jī)訪問(wèn)的本地資源MVME172LX。設(shè)置了兩個(gè)從地址解碼器。它們的設(shè)置如下：配置IndustryPackENV提出了以下一系列問(wèn)題來(lái)設(shè)置IndustryPack模塊（IPs）在MVME172LXs上。MVME172 VME嵌入式控制器程序員參考指南介紹了基址和IP寄存器設(shè)置。提到該手冊(cè)提供了有關(guān)設(shè)置基址和寄存器位的信息。介紹本章介紹了MVME172LX VME嵌入式控制器方框圖級(jí)別。功能描述概述了MVME172LX，然后詳細(xì)描述了電路。圖4-1顯示了整個(gè)電路板的框圖建筑學(xué)其他MVME172LX區(qū)塊的詳細(xì)說(shuō)明，包括ASIC和外圍芯片中的可編程寄存器可在MVME172嵌入式控制器程序員參考指南（零件號(hào)VME172A/PG）。有關(guān)的功能說(shuō)明，請(qǐng)參閱MVME172LX更深入。
Memory Configuration Defaults.
The default configuration for Dynamic RAM mezzanine boards will position the mezzanine with
the largest memory size to start at the address selected with the ENV parameter "Base Address of
Dynamic Memory". The Base Address parameter defaults to 0. The smaller sized mezzanine will
follow immediately above the larger in the memory map. If mezzanines of the same size and type
are present, the first (closest to the board) is mapped to the selected base address. If mezzanines of
the same size but different type (parity and ECC) are present, the parity type will be mapped to the
selected base address and the ECC type mezzanine will follow. The SRAM does not default to a
location in the memory map that is contiguous with Dynamic RAMENV asks the following series of questions to set up the VMEbus interface for the MVME172
series modules. You should have a working knowledge of the VMEchip2 as given in the
MVME172 VME Embedded Controller Programmer’s Reference Guide in order to perform this
configuration. Also included in this series are questions for setting ROM and Flash access time.
The slave address decoders are used to allow another VMEbus master to access a local resource of
the MVME172LX. There are two slave address decoders set. They are set up as follows:Configuring the IndustryPacks
ENV asks the following series of questions to set up IndustryPack modules
(IPs) on MVME172LXs.
The MVME172 VME Embedded Controller Programmer’s Reference
Guide describes the base addresses and the IP register settings. Refer to
that manual for information on setting base addresses and register bits. Introduction
This chapter describes the MVME172LX VME embedded controller on a
block diagram level. The Description of Features provides an overview of
the MVME172LX, followed by a detailed description of several blocks of
circuitry. Figure 4-1 shows a block diagram of the overall board
architecture.
Detailed descriptions of other MVME172LX blocks, including
programmable registers in the ASICs and peripheral chips, can be found in
the MVME172 Embedded Controller Programmer’s Reference Guide
(part number VME172A/PG). Refer to it for a functional description of the
MVME172LX in greater depth.
