HIEE451116R0001機(jī)器人卡件,ABB使用在哪里
ISA超級(jí)輸入/輸出設(shè)備（ISASIO）MVME2603/2604使用National的PC87308 ISASIO芯片半導(dǎo)體來(lái)實(shí)現(xiàn)P2和前面板的某些部分輸入/輸出：
? 兩個(gè)異步串行端口（COM1和COM2）通過(guò)P2和過(guò)渡模塊
? 通過(guò)P2和轉(zhuǎn)換模塊的并行端口：–MVME712M兼容機(jī)型中的Centronics打印機(jī)端口–兼容MVME761的IEEE1284雙向并行端口模型
? 通過(guò)驅(qū)動(dòng)器/電源連接器J4支持軟盤(pán)驅(qū)動(dòng)器
HIEE451116R0001機(jī)器人卡件? 通過(guò)圓形DIN連接器J6和J8異步串行端口ISASIO設(shè)備提供的兩個(gè)異步端口采用通過(guò)EIA-232-D驅(qū)動(dòng)器緩沖的TTL電平信號(hào)和接收器并路由到P2連接器。
硬件使用ISA將兩個(gè)串行端口初始化為COM1和COM2輸入/輸出基址分別為3F8美元和2F8美元。此默認(rèn)值配置還將COM1分配給PIB（PCI/ISA網(wǎng)橋控制器）中斷請(qǐng)求行IRQ4和COM2至IRQ3。您可以更改通過(guò)重新編程ISASIO設(shè)備進(jìn)行默認(rèn)配置。有關(guān)詳細(xì)信息編程信息，請(qǐng)參閱MVME2603/2604程序員參考指南，見(jiàn)附錄D，相關(guān)文件，以及ISASIO的供應(yīng)商文件裝置并行端口
并行端口是MVME712M兼容機(jī)型中的Centronics打印機(jī)接口，以及中的完整IEEE1284雙向并行端口MVME761兼容型號(hào)。這兩個(gè)版本都使用ISASIO設(shè)備。所有并行輸入/輸出接口信號(hào)通過(guò)
串聯(lián)阻尼電阻器。硬件使用ISA IO基址將并行端口初始化為PPT130億美元。此默認(rèn)配置還將并行端口分配給PIB（PCI/ISA網(wǎng)橋控制器）中斷請(qǐng)求線IRQ7。你可以改變通過(guò)重新編程ISASIO設(shè)備的默認(rèn)配置。對(duì)于詳細(xì)編程信息，請(qǐng)參閱PCI和ISA總線MVME2603/2604程序員參考指南中的討論，附錄D相關(guān)文件中列出，并發(fā)送給供應(yīng)商ISASIO設(shè)備的文檔。
ISA Super I/O Device (ISASIO)
The MVME2603/2604 uses a PC87308 ISASIO chip from National
Semiconductor to implement certain segments of the P2 and front-panel
I/O:
? Two asynchronous serial ports (COM1 and COM2) via P2 and
transition module
? Parallel port via P2 and transition module:
– Centronics printer port in MVME712M-compatible models
– IEEE1284 bidirectional parallel port in MVME761-compatible
models
? Floppy disk drive support via drive/power connector J4
? Keyboard and mouse interface via circular DIN connectors J6 and
J8Asynchronous Serial Ports
The two asynchronous ports provided by the ISASIO device employ
TTL-level signals that are buffered through EIA-232-D drivers and
receivers and routed to the P2 connector.
Hardware initializes the two serial ports as COM1 and COM2 with ISA
I/O base addresses of $3F8 and $2F8 respectively. This default
configuration also assigns COM1 to PIB (PCI/ISA Bridge Controller)
interrupt request line IRQ4 and COM2 to IRQ3. You can change the
default configuration by reprogramming the ISASIO device. For detailed
programming information, refer to the PCI and ISA bus discussions in the
MVME2603/2604 Programmer’s Reference Guide, listed in Appendix D,
Related Documentation, and to the vendor documentation for the ISASIO
device.
Parallel Port
The parallel port is a Centronics printer interface in MVME712Mcompatible models, and a full IEEE1284 bidirectional parallel port in
MVME761-compatible models. Both versions are implemented with the
ISASIO device. All parallel I/O interface signals are routed to P2 through
series damping resistors.
Hardware initializes the parallel port as PPT1 with an ISA IO base address
of $3BC. This default configuration also assigns the parallel port to PIB
(PCI/ISA Bridge Controller) interrupt request line IRQ7. You can change
the default configuration by reprogramming the ISASIO device. For
detailed programming information, refer to the PCI and ISA bus
discussions in the MVME2603/2604 Programmer’s Reference Guide,
listed in Appendix D, Related Documentation, and to the vendor
documentation for the ISASIO device.
