- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367820 > PCI-PIO KARTE E/A 48 KANAL PCI BUS PDF資料下載
參數(shù)資料
| 型號(hào)： | PCI-PIO |
| 英文描述： | KARTE E/A 48 KANAL PCI BUS |
| 中文描述： | KARTE E / A值48卡納爾PCI總線 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 81K |
| 代理商： | PCI-PIO |
Page 12
Programming Details
Chapter 3
Page 12
01270187.doc
Blue Chip Technology Ltd.
The enable inputs of the i8254 counter are selected using the Counter Input
Select Register B at Base + F (Hex), as shown below:-
Counter Input Select Register B (Base + F)
Bit no.
b7
Function
0 = Interrupt on counter out low
1 = Interrupt on counter out high
0 = Interrupt on counter out low
1 = Interrupt on counter out high
00 = Permanently enabled
01 = PBB1 port line
10 = PBC0 port line
11 = PBC3 port line
00 = Permanently enabled
01 = PBB0 port line
10 = PAC3 port line
11 = PBC0 port line
00 = Permanently enabled
01 = PBB2 port line
10 = PAC0 port line
11 = PAC3 port line
Counter 2 interrupt level:-
b6
Counter 1 interrupt level:-
b5..b4
Counter 2 enable source:-
b3..b2
Counter 1 enable source:-
b1..b0
Counter 0 enable source:-
Notice that it is possible by judicious setting of Counter Input Registers A and
B, to set each timer/counter to operate with an external count input, enable and
counter output if required. For example it is possible to set Counter 0 to use
PBB0 as a count input, PBB2 as an enable input, and PBB1 as a count output.
Other combinations are possible, but because of the flexibility which is
permitted, care must be exercised to avoid conflicting uses of the same port
lines.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCI-WDT | UEBERWACHUNGSKARTE PLUG AND PLAY |
| PCI-WIN2000 | WINDOWS 2000 FOR PCI DATA ACQU |
| PCI01 | Periphelar Coupled Input NPN |
| PCI350-4801NT | 350 Watt CompactPCI Power Supply |
| PCI350-4801SL | 350 Watt CompactPCI Power Supply |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCI-PXI-EXP-KIT | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 PCIe TO PCI EXPANSION KIT RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| PCI-RTV24 | 制造商:AD 制造商全稱:Analog Devices 功能描述:4-CH PCI Express?? / PCI Real-time Video Capture Cards for Standard Cameras |
| PCIRX4-B5-1.25 | 制造商:Sliger Designs, Inc. 功能描述:PCI 32 BIT RIGHT ANGLE RISER FOR 1.5U CAE CHASSIS. - Bulk |
| PCIRX4-FLEX-B5-1.25 | 制造商:Sliger Designs, Inc. 功能描述:PCI 32 BIT RIGHT ANGLE RISER FOR 1.5U CAE CHASSIS. - Bulk |
| PCIRX4FLEXB52 | 制造商:Sliger Designs, Inc. 功能描述:RISER CARD - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。