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參數(shù)資料
| 型號： | PCI-ADC |
| 英文描述： | MULTIFUNKTIONSKARTE 44 KANAL PCI BUS |
| 中文描述： | MULTIFUNKTIONSKARTE 44卡納爾PCI總線 |
| 文件頁數(shù)： | 25/35頁 |
| 文件大?。?/td> | 124K |
| 代理商： | PCI-ADC |
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Chapter 3
Programming Details
Page 17
Blue Chip Technology Ltd.
01270193.doc
Page 17
Mode 1 enables the transfer of data to or from a specified 8 bit port (A or B) in
conjunction with strobes or handshaking signals on port C. These handshaking
signals may be used to drive interrupt channels if required.
In Mode 2, data is transferred via one bi-directional 8 bit port (A) with
handshaking (port C). These handshaking signals may be used to drive
interrupt channels if required. In this mode port B is not available.
Refer to the i8255 or μPD71055 data sheet for full details of the settings and use
of Modes 1 and 2.
i8254 / μPD71054 Counter / Timer
The counter/timer circuit contains three independent 16-bit counters which may
be operated in a variety of modes. There are five basic modes of operation with
each mode providing a different output signal. Presented here is a brief
summary of some of the modes possible by programming the counter / timer’s
internal registers. Refer to the i8254 or μPD71054 data sheet for full details of
the settings and use of the counter / timer.
All three counter/timers may be operated independently, with separate clocks.
The clock inputs of two counter/timers may also be made accessible on the back
panel connector. See the Counter Control Register table for the available clock
inputs.
Counter 0, Counter 1 and Counter 2 may also be connected in series. Counter 0
output linked to Counter 1 clock input and/or Counter 1 output linked to
Counter 2 clock input, to allow the generation of very long delay periods.
The outputs from any counter/timer may be configured to generate an interrupt.
Counter / Timer Modes
The following modes of operation exist by programming the control register
within the i8254 / μPD71054.
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| PCI-DIO | KARTE E/A 32 KANAL PCI BUS |
| PCI-NT | TREIBER SOFTWARE FUER PCI E/A KARTEN |
| PCI-PIO | KARTE E/A 48 KANAL PCI BUS |
| PCI-WDT | UEBERWACHUNGSKARTE PLUG AND PLAY |
| PCI-WIN2000 | WINDOWS 2000 FOR PCI DATA ACQU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCIB24W9M400A1 | 制造商:Positronic Industries 功能描述: |
| PCIB40 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40-Ch Digital I/O & Counter Board |
| PCIC16W7M400C1 | 制造商:Positronic Industries 功能描述: |
| PCI-C588 | 功能描述:界面模塊 8 PORT ASYNC SERIAL COMM PCI CARD RoHS:否 制造商:4D Systems 產(chǎn)品:Serial Converters 通道/端口數(shù)量: 數(shù)據(jù)速率: 接口類型:USB, UART 工作電源電壓:3.3 V, 5 V 最大工作溫度: |
| PCI-C6600S4-2-67-167 | 制造商:Johnson Components 功能描述:SBC;DSP, 2 C9701, 2MB SRAM, IN |
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