HESG446076R1卡件，ABB说明书文档
RAM200内存模块RAM200是ECC DRAM内存夹层模块（连同LED夹层和可选PCI夹层卡）插入基板，形成完整的MVME2603或MVME2604单板计算机。参见第1-37页的图1-18。内存可用16、32、64、128或256MB的RAM200模块膨胀ECC DRAM由Falcon内存控制控制器芯片组。Falcon ASIC执行双向交织双位错误检测和单位错误校正。
HESG446076R1卡件除ECC DRAM外，RAM200模块还提供4MB或8MB额外焊接在64位闪存中。跳投头球（J10）告诉Falcon芯片组在内存中的何处获取电路板重置矢量。根据J10的配置，从以下位置执行重置：闪存组A或来自闪存组B。MVME712M过渡模块MVME712M过渡模块（第1-16页图1-3）和P2适配器板与MVME2603/2604底座一起使用板
MVME712M的特点包括：❏ 并行打印机端口（通过P2适配器）
❏ 支持AUI连接的以太网接口（通过P2适配器）
❏ 四个EIA-232-D多协议串行端口（通过P2适配器）
❏ SCSI接口（通过P2适配器）用于连接到两个内部和外部设备
❏ 插座安装的SCSI端接电阻器，用于电缆末端或中间电缆配置
❏ 调制解调器连接规定
❏ SCSI终端电源的绿色LED；以太网黄色LED收发器功率
P2适配器板的功能包括：
❏ 一个50针连接器，用于SCSI布线至MVME712M和/或其他SCSI设备
❏ 插座安装的SCSI端接电阻器，用于电缆末端或中间电缆配置
RAM200 Memory Module
The RAM200 is the ECC DRAM memory mezzanine module that
(together with an LED mezzanine and an optional PCI mezzanine card)
plugs into the base board to make a complete MVME2603 or MVME2604
single board computer. See Figure 1-18 on page 1-37.RAM200 modules of 16, 32, 64, 128, or 256MB are available for memory
expansion. The ECC DRAM is controlled by the Falcon memory
controller chip set. The Falcon ASICs perform two-way interleaving, with
double-bit error detection and single-bit error correction.
In addition to the ECC DRAM, the RAM200 module supplies 4MB or
8MB of additional soldered-in 64-bit Flash memory. A jumper header
(J10) tells the Falcon chip set where in memory to fetch the board reset
vector. Depending on the configuration of J10, resets execute either from
Flash memory bank A or from bank B.
MVME712M Transition Module
The MVME712M transition module (Figure 1-3 on page 1-16) and P2
adapter board are used in conjunction with the MVME2603/2604 base
board.
The features of the MVME712M include:
❏ A parallel printer port (via P2 adapter)
❏ An Ethernet interface supporting AUI connections (via P2 adapter)
❏ Four EIA-232-D multi-protocol serial ports (via P2 adapter)
❏ An SCSI interface (via P2 adapter) for connection to both internal
and external devices
❏ Socket-mounted SCSI terminating resistors for end-of-cable or
middle-of-cable configurations
❏ Provision for modem connection
❏ Green LED for SCSI terminator power; yellow LED for Ethernet
transceiver power
The features of the P2 adapter board include:
❏ A 50-pin connector for SCSI cabling to the MVME712M and/or to
other SCSI devices
❏ Socket-mounted SCSI terminating resistors for end-of-cable or
middle-of-cable configurations
