參數(shù)資料
型號(hào)： PCI-DIO
英文描述： KARTE E/A 32 KANAL PCI BUS
中文描述： KARTE E / A值32卡納爾PCI總線
文件頁(yè)數(shù)： 11/21頁(yè)
文件大?。?/td> 83K
代理商： PCI-DIO
Chapter 3
Programming Details
Page 7
01270192.doc
Digital Inputs
When the Data Input Buffer is read Buffer (word read to base + 6), it reflects
the true status of the digital inputs at the time when the read takes place.
Bit 0 (LSbit) of the Data Input Buffer reflects the state of Digital Input 1 and bit
15 (MSbit) reflects the state of Digital Input 16
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.
All three counter/timers may be operated independently, with separate clocks
and enable controls.
Counter 0, Counter 1 and Counter 2 may be connected in series. Counter 0
output to Counter 1 clock input and/or Counter 1 output to Counter 2 clock
input, to allow the facility of generating very long delay periods.
The outputs from any counter/timer may be configured to generate an interrupt
when going high or low, and may also be made accessible on the back panel
connector.
The clock and enable inputs of the counter/timers may also be made accessible
on the back panel connector.
Counter / Timer Modes
The following modes of operation exist by programming the control register
within the i8254 / μPD71054. N.B. The interrupts may be generated when the
Counter/timer outputs go low or high, selected by bits in the counter control
registers.
相關(guān)PDF資料
PDF描述
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
PCI01 Periphelar Coupled Input NPN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCIE CABLE ADAPTER KIT 8732 制造商:PLX Technology 功能描述:TWO PEX8732 ADAPTER CARDS W/ 4 MINI-SAS CABLES AND 1 SATA CA - Bulk
PCIE-036-02-F-D-EM2 制造商:Samtec Inc 功能描述:CONN CARD EDGE SKT 72 POS 1MM SLDR ST EDGE MNT - Bulk 制造商:Samtec Inc 功能描述:SOCKET PCI-E 2X18 EDGE
PCIE-036-02-F-D-EMS2 制造商:Samtec Inc 功能描述:PCI EXPRESS EDGE MOUNT ASSEMBLY - Bulk 制造商:Samtec Inc 功能描述:PCI-E SOCKETS 1MM EDGEMOUNT 36WAY 制造商:Samtec Inc 功能描述:PCI-E SOCKETS, 1MM, EDGEMOUNT, 36WAY 制造商:Samtec Inc 功能描述:PCI-E SOCKETS, 1MM, EDGEMOUNT, 36WAY; Connector Type:PCIe; Series:PCIE; Pitch Spacing:1mm; No. of Contacts:36; Gender:Receptacle; Contact Termination:Surface Mount Right Angle; No. of Rows:2; Contact Plating:Gold; Contact ;RoHS Compliant: Yes 制造商:Samtec 功能描述:Receptacle PCI Express edge 36way
PCIE-036-02-F-D-EMS2-BG 制造商:Samtec Inc 功能描述:PCI EXPRESS EDGE MOUNT ASSEMBLY - Bulk
PCIE-036-02-F-D-EMS3 制造商:Samtec Inc 功能描述:PCI EXPRESS EDGE MOUNT ASSEMBLY - Bulk
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