標(biāo)準(zhǔn)軟盤驅(qū)動器控制器
集成外設(shè)3BHE013940R0002集成了國家半導(dǎo)體超級I/O（SIO）芯片。SIO為3BHE013940R0002提供標(biāo)準(zhǔn)軟盤驅(qū)動器控制器、兩個16550 UART兼容串行端口、鍵盤和鼠標(biāo)端口以及用于系統(tǒng)監(jiān)控功能的通用I/O。兩個串行端口信號都可從前面板獲得。軟盤信號可通過VME背板連接器獲得，并可通過適當(dāng)?shù)霓D(zhuǎn)換實用程序板（VMIACC-0562）訪問。IDE接口由Intel I/O控制器集線器（ICH2）芯片提供。IDE接口支持兩個通道，即主通道和輔助通道。輔助通道在板上路由到可選的緊湊型閃存插槽。主通道從VME背板路由至VMIACC-0562轉(zhuǎn)換實用程序板，該板終止于標(biāo)準(zhǔn)的40針接頭。此通道可以支持兩個驅(qū)動器，一個主驅(qū)動器和一個從驅(qū)動器。3BHE013940R0002上的IDE接口支持ATA-33、ATA-66和ATA-100驅(qū)動器，并根據(jù)使用的驅(qū)動器類型自動確定正確的操作模式。為了在ATA-100模式下正常工作，必須使用特殊的80芯電纜，而不是標(biāo)準(zhǔn)的40芯電纜。此電纜通?？蓮腁TA-100驅(qū)動器制造商處獲得。
以太網(wǎng)控制器雙網(wǎng)絡(luò)功能
以太網(wǎng)控制器雙網(wǎng)絡(luò)功能由外部Intel 82559ER以太網(wǎng)控制器和Intel ICH2芯片內(nèi)部的MAC提供。兩個以太網(wǎng)控制器都是基于PCI的，并且是軟件可配置的。3BHE013940R0002支持雙10BaseT和100BaseTx以太網(wǎng)。10BaseT基于10BaseT標(biāo)準(zhǔn)的網(wǎng)絡(luò)使用非屏蔽雙絞線電纜，通過允許使用現(xiàn)有電話線路和連接器，為網(wǎng)絡(luò)提供了經(jīng)濟的解決方案。RJ-45連接器與10BaseT標(biāo)準(zhǔn)一起使用。10BaseT的最大長度為100米。100BaseTx 3BHE013940R0002還支持100BaseTx以太網(wǎng)。基于100BaseTx標(biāo)準(zhǔn)的網(wǎng)絡(luò)使用非屏蔽雙絞線電纜和RJ-45連接器。100BaseTx的最大長度為100米。
Standard Floppy Drive Controller
The integrated peripheral 3BHE013940R0002 integrates the National Semiconductor Super I/O (SIO) chip. SIO provides 3BHE013940R0002 with a standard floppy disk drive controller, two 16550 UART compatible serial ports, keyboard and mouse ports, and general I/O for system monitoring functions. Both serial port signals are available from the front panel. The floppy disk signal is available through the VME backplane connector and is accessed through the appropriate conversion utility board (VMIACC-0562). The IDE interface is provided by the Intel I/O Controller Hub (ICH2) chip. The IDE interface supports two channels, namely the primary channel and the secondary channel. The secondary channel is routed on the board to the optional compact flash slot. The primary channel is routed from the VME backplane to the VMIACC-0562 conversion utility board, which terminates at the standard 40 pin connector. This channel can support two drives, one master drive and one slave drive. The IDE interface on 3BHE013940R0002 supports ATA-33, ATA-66, and ATA-100 drives, and automatically determines the correct operation mode according to the drive type used. In order to work properly in the ATA-100 mode, a special 80 core cable must be used instead of the standard 40 core cable. This cable is usually available from the ATA-100 drive manufacturer.
Dual network function of Ethernet controller
The dual network function of Ethernet controller is provided by the external Intel 82559ER Ethernet controller and the internal MAC of Intel ICH2 chip. Both Ethernet controllers are PCI based and software configurable. 3BHE013940R0002 supports dual 10BaseT and 100BaseTx Ethernet. 10BaseT network based on 10BaseT standard uses unshielded twisted pair cable, which provides an economical solution for the network by allowing the use of existing telephone lines and connectors. RJ-45 connector is used with 10BaseT standard. The maximum length of 10BaseT is 100 meters. 100BaseTx 3BHE013940R0002 also supports 100BaseTx Ethernet. The network based on 100BaseTx standard uses unshielded twisted pair cables and RJ-45 connectors. The maximum length of 100BaseTx is 100 meters.
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