By Michael Gook
Concentrating on the most recent learn on interfaces utilized in glossy info know-how, this reference covers common exterior interfaces, peripheral equipment interfaces, exterior reminiscence interfaces, growth buses, instant interfaces, community interfaces, and auxiliary serial interfaces. particular applied sciences lined contain LPT, COM, USB, FireWire, SCSI, mouse, computer screen, printer, audio and video interfaces, Serial ATA and flash playing cards, ISA, PCI, EISA, PC/104, AGP, LPC, PCMCIA, CardBus, Bluetooth, SPI, MII, SMI, JTAG, and Ethernet. additionally incorporated is info on sign line definitions and sign association on I/O connectors, time diagrams, adapters (ATA and NIC), controllers (DMA, PCI IDE, and FDC AT), interrupts, and multifunction playing cards.
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The host sets the SelectIn# line to high and the AutoFeed# line to low, starting the negotiation sequence. 3. The peripheral device responds by setting the Ack# line low and the Error#, Paper-End, and Select lines high. A device that does not "understand" the IEEE 1284 standard will not respond, and further steps will not be carried out. 4. The host sets the Strobe# signal to low to write the extensibility byte into the peripheral device. 5. The host sets the Strobe# and AutoLF# signals to high.
This means that the peripheral device cannot hold off the beginning of the next cycle (although the device can extend it as necessary). 7. ) This version was used in the 82360 controller. 7 peripheral device may refuse to work with an IEEE 1284 EPP controller. From the software standpoint, an EPP controller looks simple. ) To the three registers of the standard port, with the 0, 1, and 2 offsets relative to the base port address, two more registers have been added (EPP Address Port and EPP Data Port).
CTS Clear To Send: permission to the terminal to send data. The OFF state disallows data transfer. The signal is used for hardware control of the data streams. DSR Data Set Ready: input of the signal indicating that the equipment is ready to transmit data (a modem in the operational mode is connected to the channel and has completed negotiation with the equipment on the opposite side of the channel) DTR Data Terminal Ready: output of the signal indicating that the terminal is ready to exchange data.
PC Hardware Interfaces. Developer's Reference by Michael Gook