[INTEL NAVIGATION HEADER]

82091AA: Hardware Strapping Configuration

HARDWARE BASIC CONFIGURATION MODE (HWB)

  • Configuration Register ISA Address (INDEX/TARGET) @ 398H/399H
  • FDC enabled at primary (3F0-3F7) and IDE enabled at primary (1F0-1F7)
  • 5V operation only
  • Default

    CFG SignalPin NamePin #PU/PDNote
    CFGDISHEN#94PDAIP configuration access enabled
    CFGMOD1PPDIR72PUCFGMOD1:0 determine the AIP configuration mode
    CFGMOD0DEN#95PUHWB config mode
    DDCFG1
    DDCFG0
    IDECS1#
    IDECS0#
    91
    92
    PU
    PU
    DDCFG1:0 deterines FDC and IDE enable/disable and address
    SPCFG0SOUTA39PUSPCFG3:0 deterimine Serial Port A and B enable/disable, address and IRQ configuration
    SPCFG1SOUTB47PDSPA enabled at address 3F8-F with IRQ4
    SPCFG2RTSA#38PDSPB enabled at address 2F8-F with IRQ3
    SPCFG3RTSB#46PU
     
    PPCFG0
    PPCFG1
    DTRA#
    DTRB#
    41
    49
    PU
    PD
    PPCFG1:0 deterimine Parallel Port enable/disable, address and IRQ configuration (AT mode default). Parallel Port enabled at address 378-F IRQ7

    EXTENDED HARDWARE CONFIGURATION MODE (HWE)
    HWEa (Hardware Extended) configuration mode

  • Configuration Register ISA Address (INDEX/TARGET) @ 26EH/26FH
  • FDC enabled at primary (3F6-3F7H) and IDE enabled at primary (1F0-1F7)
  • Parallel port PS/2-Compatible
  • Support 2 floppy drives
  • 5V operation only

    CFG SignalPin NamePin #PU/PDNote
    CFGDISHEN#94PDAIP configuration access enabled
    CFGMOD1PPDIR72PUCFGMOD1:0 determine the AIP configuration mode
    CFGMOD0DEN#95PDHWE config mode
    DDCFG1
    DDCFG0
    IDECS1#
    IDECS0#
    91
    92
    PU
    PU
    DDCFG1:0 determines FDC and IDE enable/disable and address
    CLKSELSOUTA39PDTie this signal low with a 10K resistor for 24MHz
    PPMOD0
    PPMOD1
    SOUTB
    RTSA#
    47
    38
    PU
    PD
    PPMOD(1:0) Parallel Port Hardware mode.
    FDDQTYRTSB#46PDFDDQTY Floppy Disk Drive Quantity.
    CFGADSDTRA#41PDCFGADS=Configuration register address select
    VSELDTRB#49PDVSEL Power Supply Voltage Select

    HWEb (Hardware Extended) configuration mode

  • Configuration Register ISA Address (INDEX/TARGET) @ 26EH/26FH
  • FDC enabled at primary (3F6-3F7H) and IDE enabled at primary (1F0-1F7)
  • Parallel port enabled @378h-37Fh with IRQ7
  • 5V operation only

    CFG SignalPin NamePin #PU/PDNote
    CFGDISHEN#94PDAIP configuration access enabled
    CFGMOD1PPDIR72PUCFGMOD1:0 determine the AIP configuration mode
    CFGMOD0DEN#95PDHWE config mode
    DDCFG1
    DDCFG0
    IDECS1#
    IDECS0#
    91
    92
    PU
    PU
    DDCFG1:0 deterines FDC and IDE enable/disable and address
    SPCFG0SOUTA39PUSPCFG3:0 deterimine Serial Port A and B enable/disable, address and IRQ configuration
    SPCFG1SOUTB47PDSPA enabled at address 3F8-F with IRQ4
    SPCFG2RTSA#38PDSPB enabled at address 2F8-F with IRQ3
    SPCFG3RTSB#46PU
     
    PPCFG0
    PPCFG1
    DTRA#
    DTRB#
    41
    49
    PU
    PD
    PPCFG1:0 deterimine Parallel Port enable/disable, address and IRQ configuration (AT mode default). Parallel Port enabled at address 378-F IRQ7

    SOFTWARE ADD-IN CONFIGURATION MODE (SWAI)

  • Configuration Register ISA Address (INDEX/TARGET) @ 26EH/26FH
  • Serial Ports disabled (default for SWAI)
  • Parallel Port disabled (default for SWAI)
  • FDC enabled for two drives at the primary address
  • IDE enabled at primary address (default for SWAI)
  • 5V operation only

    CFG SignalPin NamePin #PU/PDNote
    (NA)HEN#94-No assigment for SWAI mode, PU/PD not req.
    CFGMOD1PPDIR72PDCFGMOD1:0 determine the AIP confiuration mode
    CFGMOD0DEN#95PUSWAI config mode
    (NA)IDECS1#91-No assigment for SWMB mode, PU/PD not req.
    (NA)IDECS0#92-No assigment for SWMB mode, PU/PD not req.
    CLKSELSOUTA39PDTie this signal low with a 10K resistor for 24MHz
    (NA)SOUTB47-No assigment for SWMB mode, PU/PD not req.
    (NA)RTSA#38-No assigment for SWMB mode, PU/PD not req.
    (NA)RTSB#46-No assigment for SWMB mode, PU/PD not req.
    CFGADSDTRA#41PUPull-Up selects config address 26Eh-26Fh
    VSELDTRB#49PD5 volt operation

    SOFTWARE MOTHERBOARD CONFIGURATION MODE (SWMB)

  • Configuration Register ISA Address (INDEX/TARGET) @ 24H/25H
  • Serial Ports disabled (default for SWMB)
  • Parallel Port disabled (default for SWMB)
  • FDC enabled for two drives at the primary address
  • IDE enabled at primary address (default for SWMB)
  • 5V operation only

    CFG SignalPin NamePin #PU/PDNote
    (NA)HEN#94-No assigment for SWMB mode, PU/PD not req.
    CFGMOD1PPDIR72PDCFGMOD1:0 determine the AIP confiuration mode
    CFGMOD0DEN#95PDSWMB config mode
    (NA)IDECS1#91-No assigment for SWMB mode, PU/PD not req.
    (NA)IDECS0#92-No assigment for SWMB mode, PU/PD not req.
    CLKSELSOUTA39PDTie this signal low with 10K resistor for 24MHz
    (NA)SOUTB47-No assigment for SWMB mode, PU/PD not req.
    (NA)RTSA#38-No assigment for SWMB mode, PU/PD not req.
    (NA)RTSB#46-No assigment for SWMB mode, PU/PD not req.
    CFGADSDTRA#41PUPull-Up selects config address 24-25
    VSELDTRB#49PD5 volt operation

    Intel Corporation disclaims all warranties and liabilities for the use of this document and the information contained herein, and assumes no responsibility for any errors which may appear in this document. Intel makes no commitment to update the information contained herein, and may make changes at any time without notice. There are no express or implied licenses granted hereunder to any intellectual property rights of Intel Corporation or others to design or fabricate Intel integrated circuits or integrated circuits based on the information in this document.

    Information in this document is provided in connection with Intel products. Intel assumes no liability whatsoever, including infringement of any patent or copyright, for sale and use of Intel products except as provided in Intel's Terms and Conditions of Sale for such products. Intel retains the right to make changes to these specifications at any time, without notice. Microcomputer Products may have minor variations to this specification known as errata.

  • Other product and corporate names may be trademarks or registered trademarks of other companies, and are used only for explanation and to the owners' benefit, without intent to infringe.

    ©INTEL CORPORATION, 1995



  • Legal Stuff © 1997 Intel Corporation

    Free Web Hosting