參數(shù)資料
型號(hào)： PCPIC
英文描述： PC(ISA)BUS I/O CARD
中文描述： 電腦（ISA）總線的I / O卡
文件頁(yè)數(shù)： 19/40頁(yè)
文件大?。?/td> 468K
代理商： PCPIC
There are three functions defined by links on the PCPIC: where the
interrupts go to on the PC, what the timebase clock is, and the
address of the board
The links are defined by pushing little blue jumpers onto pairs of
pins.
Link 1. Where the interrupts go to on the PC
This is a group of five pairs of pins just above the PCbus connector.
The jumper must be inserted horizontally, which means that there
are six possible situations (including no jumper inserted).
LKN1
LKN2
LKN3
LKN4
LKN5
-
-
-
-
-
IRQ2
IRQ3
IRQ4
IRQ5
IRQ7
No jumper means that the PCPIC cannot generate any interrupts.
If you intend to use the Arcom driver software it may be necessary
to insert a jumper into one of these link positions. See the section on
driver software.
We recommend that you do not insert a jumper into the IRQ links.
Change this if you intend to use interrupts and are experienced at
writing PC interrupt-handling software, or possibly if you are using
the Arcom drivers.
Link 2. Timebase clock
This is a group of three pins in the centre left of the board. The
jumpers are also inserted horizontally, and there are two possible
positions, labelled A and B. Link 1A feeds a 1MHz clock into the
timebase counter, and link 1B feeds a 25kHz clock into the timebase
counter.
Connections
Connections to the board are made by a 50-way D type connector. It
is usual to use a ribbon-cable (insulation displacement or IDC)
connector to plug into this, so that all 50 wires are connected at once.
This point is mentioned because there is some confusion about how
50-way D connector pins are numbered. Before IDC 50-way D
connectors became popular the conventional numbering was to
number the pins incrementing parallel to the long edge of the
connector. This number is often moulded into the plastic next to
each pin. Ribbon cables, however, are numbered sequentially from
the stripe at one edge. This is not compatible for mechanical reasons
with the original D numbering system.
Because most people will use ribbon cables with this board we have
J230 PCPIC
Page 19
2192-09155-000-000
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCPIC1211DBXR 制造商:Texas Instruments 功能描述:
PCPKITEI 功能描述:電線導(dǎo)管 Pan Pole Replacement Parts Kit (includes RoHS:否 制造商:Panduit 類型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 顏色:Light Gray 大小: 最大光束直徑: 抗拉強(qiáng)度: 外部導(dǎo)管寬度:25 mm 外部導(dǎo)管高度:25 mm
PCPKITIW 功能描述:電線導(dǎo)管 Pan Pole Replacement Parts Kit (includes RoHS:否 制造商:Panduit 類型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 顏色:Light Gray 大小: 最大光束直徑: 抗拉強(qiáng)度: 外部導(dǎo)管寬度:25 mm 外部導(dǎo)管高度:25 mm
PCPL-17B 制造商:PMA 功能描述:20MM POLY. BLK CONT. PACK
PCPLHK 功能描述:ANT SUB YAGI 10-13 ELEMENT KIT RoHS:是 類別:RF/IF 和 RFID >> RF 天線 系列:* 標(biāo)準(zhǔn)包裝:1 系列:*
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