CH 16 IO INTERFACES

1

• CH 16 - I/O INTERFACES
• SERIAL PORT
• PARALLEL PORT
• USB
• FIREWIRE
• SERIAL PORTS - ASYHCHRONOUS SERIAL INTERFACE
• START AND STOP SIGNAL
• 8 BITS (BYTE)
• 1 OR 2 STOP BITS
• 20 ADMINISTRATIVE INFORMATION
• SINGLE WIRE

2

• 10110101010101000101001001010101
• 9 PIN OR 25 PIN
• CD, RD, TD, DTR, SG, DSR, RTS, CTS, RI
• UART CHIPS (UNIVERSAL ASYNCHRONOUS
  RECEIVER/TRANSMITTER)
• 8250, 16450, 16550, 16550A(16 BYTE FIFO BUFFER)
• 16450(1 BYTE BUFFER) PINS IDENTICAL TO 16550
• CHECK WITH MSD OR WIN95 (DEVICE MANAGER)
• 16550A NECESSARY FOR HIGH SPEED MODEMS
• HIGH SPEED SERIAL PORTS - ESP
• INCREASE THE BUFFER SIZE
• RATE UP TO 921.6Kbps
• ISDN MODEM CONNECTION/LINE
• MULTIPORT CARDS WITH 2-32 COM PORTS

3

• REPLACE THE UART(16550) WITH AN INTEGRATED
  CIRCUIT
• PART OF THE SUPER I/O CHIP
• SERIAL PORT CONFIGURATION
• INTERRUPTS - IRQ3, IRQ4
• PORT ADDRESSES - 3F8H, 2F8H, 3E8H, 2E8H
• USE NON-CONFLICTING INTERRUPTS
• WIN 95 SUPPORTS 128 SERIAL PORTS
• TESTING SERIAL PORTS
• MSD (\OTHER\MSD-W9X,\TOOLS\OLDMSDOS-W98)
• VERIFY COMM.DRV BY CHECKING PROPERTIES
• USE DEVICE MANAGER FOR CONFLICTING DEVICES
• CHANGE IN W9X OR BIOS FOR CONFLICTS
• NORTON UTILITIES
• LOOP BACK PLUGS-IBM,NORTON-9/25 PIN-PG 932-12ED

4

• PARALLEL PORTS - IEEE 1284
• PRINTERS (8 BITS - 1 BYTE)
• PROGRAMS (4 BITS?)
• TYPES OF PORTS
• UNIDIRECTIONAL(SPP) - 8 BIT OUT, 4 BIT IN (TRICK)
• NO FEEDBACK (NO POSTSCRIPT)
• BIDIRECTIONAL - 8 BIT OUT, 8 BIT IN - TYPE 1
• DMA TYPE 3 (IBM SPECIFC)
• ENHANCED PARALLEL PORT (EPP)
• SOME INCOMPATIBLE STANDARDS - ISA BUS SPEED
• ENHANCED CAPABILITIES PORT (ECP)
• HP AND MICROSOFT - 1992
• SPECIAL HARDWARE LOGIC
• NO SUPPORT FOR PARALLEL PORT PERIPHERALS(CD,ZIP)
• UPGRADE - SUPER I/O SUPPORTS EPP AND ECP

5

• PARALLEL PORT - CONFIGURATION
• 8/16 BIT ISA
• LPT1/3BC/IRQ7, LPT2/378H/IRQ5/, LPT3/278H/NONE
• CHECK THE OEM MANUALS
• LINK COMPUTERS THROUGH PARALLEL PORT
• PARALLEL PORT DEVICES - PARA -SCSI
• TAPE BACKUP, CDROM, ZIP DRIVES
• TESTING SERIAL/PARALLEL PORTS
• NORTON UTILITIES WITH LOOP BACK PLUG
• MSD
• WIN9X - CONTROL PANEL - DEVICE MANAGER
• MAKE LOOP BACK PLUGS PAGE 940-12ED

6

• SERIAL PARALLEL REPLACEMENTS
• UNIVERSAL SERIAL BUS - 4 WIRES - SYMBOL
• 127 DEVICES - NICE PICTURES PAGE 966
• MODEMS, TELEPHONES, JOYSTICKS, KYBDS, MICE
• PNP AND HOT PLUGGING
• BIOS SUPPORT - LEGACY FOR KYBD, MOUSE
• USB 2.0 REPLACES SCSI? - NO MICROSOFT SUPPORT?
• USB ADAPTERS - USB-TO- INTELLIGENT CONN.
• PARALLEL
• SERIAL
• SCSI
• ETHERNET
• KEYBOARD/MOUSE
• TV/VIDEO
• LEGACY FREE - LACKS ALL ISA BUS COMPONENTS
• NO SERIAL,PARALLEL, KEYBOARD, MOUSE CONNECTIONS

7

• USB 2.0 TO 60MB/SEC
• IEEE 1394 - 6 WIRES (4 WIRES DV)
• 2 POWER, SIGNAL A, SIGNAL B
• PNP AND HOT PLUGGING
• 16 DEVICES, 1023 BRIDGED BUSSES, 64000 NODES
• ALL TYPES OF PERIPHERALS
• ELIMINATE SKEW AND JITTER
• SKEW - BITS ARRIVE AT DIFFERENT TIMES
• JITTER - NOT AT CORRECT (TARGET VOLTAGE)
• HALF SPEED OF USB 2.0-NEW50/100/125MB/sec
• MAJOR APPLICATIONS - DIGITAL VIDEO
• FIREWIRE, I.LINK

8

• USB SUMMARY - ALL PCs AS STANDARD!?!
• KEYBOARDS, MICE, JOYSTICKS, LOW-RES CAMERA, LOW
  SPEED DRIVES, MODEMS, PRINTERS, LOW-RES SCANNERS
• 127 DEVICES
• 5 METER CABLE - 1.5MBPS (USB 2.0 - 60M/SEC)
• FIRE WIRE (IEEE-1394) SUMMARY
• CAMCORDERS, HIGH-RES CAMERAS, HDTV, SET-TOP
  BOXES, HIGH SPEED DRIVES, HIGH-RES SCANNER
• 63 DEVICES
• 4.5 METER CABLE - 25 MBPS (50,100,125 MBPS)
• PRICES COMING DOWN?