FRASER'S HILL
FHL-8121
USER REFERENCE MANUAL
Revision 1.01

Copyright © Fraser's Hill Ltd. 1990-1992. All Rights Reserved.
Fraser's Hill and FHL are registered trademarks of Fraser's Hill Ltd.

HARDWARE CONFIGURATION

All configuration for the FHL-8121 is done using the configuration options on the reference diskette. The ADF file for the FHL-8121 is @6DBE.ADF.

PC Memory Window Address
PC I/O Base Address
PC Interrupt Request Level
X.21 Signals
Adapter Definition File

PC MEMORY WINDOW ADDRESSES

The FHL-8121 supports two 16 KB windows in the PC memory space to access the memory on the board. There are seven possible choices of segment address for each window. The defaults are D000 for Window 0 and D400 for Window 1.

WINDOW 0: C000, C400, C800, CC00, D000, D400, D800
WINDOW 1: C400, C800, CC00, D000, D400, D800, DC00

PC I/O BASE ADDRESS

There are seven possible choices for the base PC I/O address for accessing the FHL-8121 adapter card. The default I/O base address is 300.

I/O ADDR: 300, 320, 340, 360, 380, 3A0, 3E0

PC INTERRUPT REQUEST LEVEL

There are five choices for the PC interrupt request level to be used when the board microcode wants to interrupt the PC. The default interrupt request level is IRQ 3.

IRQ: IRQ2, IRQ3, IRQ4, IRQ5, IRQ7

X.21 SIGNALS

PRIMARY CHANNEL

       SIGNAL    CIRCUIT     PIN        I/O

        FG                   01
        TXD         T        02/09      OUT
        RXD         R        04/11      IN
        CTL         C        03/10      OUT
        IND         I        05/12      IN
        RXC         S        06/13      IN
        TXC         B        07/14      IN
        SG                   08
        NC                   15

ADAPTER DEFINITION FILE

; Fraser's Hill FHL-8121 Communications Adapter
; Adapter Description File
; Version 1.01

; Copyright (C) Fraser's Hill Ltd. 1991-1992
; Licensed Program - All Rights Reserved

AdapterID 06DBEh

AdapterName  "Fraser's Hill FHL-8121 Communications Adapter"

NumBytes 4

FixedResources

; POS register 103 is currently set to fix the two memory windows
; in the first megabyte of the PC address space.

    pos[1]=10000XXXb
    pos[3]=XX0XXXXXb

NamedItem

    Prompt "I/O Address"

    choice "300-30F"  pos[2]=XX011000b  io 0300h - 030Fh
    choice "320-32F"  pos[2]=XX011001b  io 0320h - 032Fh
    choice "340-34F"  pos[2]=XX011010b  io 0340h - 034Fh
    choice "360-36F"  pos[2]=XX011011b  io 0360h - 036Fh
    choice "380-38F"  pos[2]=XX011100b  io 0380h - 038Fh
    choice "3A0-3AF"  pos[2]=XX011101b  io 03A0h - 03AFh
    choice "3E0-3EF"  pos[2]=XX011111b  io 03E0h - 03EFh

    Help

"This selection assigns the I/O address range used by
 the FHL-8121. Use the F5=Previous and the F6=Next keys
 to change this assignment. Conflicting assignments are
 marked with an asterisk and must be changed."

NamedItem

    Prompt "Interrupt Request Level"

    choice "IRQ 3"    pos[0]=XXXX000Xb  int 3
    choice "IRQ 4"    pos[0]=XXXX001Xb  int 4
    choice "IRQ 5"    pos[0]=XXXX010Xb  int 5
    choice "IRQ 7"    pos[0]=XXXX011Xb  int 7
    choice "IRQ 9"    pos[0]=XXXX100Xb  int 9
    choice "IRQ 10"   pos[0]=XXXX101Xb  int 10
    choice "IRQ 11"   pos[0]=XXXX110Xb  int 11
    choice "IRQ 12"   pos[0]=XXXX111Xb  int 12

    Help

"This selection assigns the interrupt request level used
 by the FHL-8121. Use the F5=Previous and the F6=Next
 keys to change this assignment. Conflicting assignments
 are marked with an asterisk and must be changed."

NamedItem

    Prompt "Memory Window 0 Address"

    choice "D0000-D3FFF"   pos[0]=0100XXXXb   mem 0D0000h - 0D3FFFh
    choice "D4000-D7FFF"   pos[0]=0101XXXXb   mem 0D4000h - 0D7FFFh
    choice "D8000-DBFFF"   pos[0]=0110XXXXb   mem 0D8000h - 0DBFFFh
    choice "C0000-C3FFF"   pos[0]=0000XXXXb   mem 0C0000h - 0C3FFFh
    choice "C4000-C7FFF"   pos[0]=0001XXXXb   mem 0C4000h - 0C7FFFh
    choice "C8000-CBFFF"   pos[0]=0010XXXXb   mem 0C8000h - 0CBFFFh
    choice "CC000-CFFFF"   pos[0]=0011XXXXb   mem 0CC000h - 0CFFFFh
    choice "Disabled"      pos[0]=0111XXXXb

    Help

"This selection assigns the first memory address range
 used by the FHL-8121. Use the F5=Previous and the F6=Next
 keys to change this assignment. Conflicting assignments
 are marked with an asterisk and must be changed."

NamedItem

    Prompt "Memory Window 1 Address"

    choice "D4000-D7FFF"   pos[3]=XXXX0101b   mem 0D4000h - 0D7FFFh
    choice "D8000-DBFFF"   pos[3]=XXXX0110b   mem 0D8000h - 0DBFFFh
    choice "DC000-DFFFF"   pos[3]=XXXX0111b   mem 0DC000h - 0DFFFFh
    choice "C4000-C7FFF"   pos[3]=XXXX0001b   mem 0C4000h - 0C7FFFh
    choice "C8000-CBFFF"   pos[3]=XXXX0010b   mem 0C8000h - 0CBFFFh
    choice "CC000-CFFFF"   pos[3]=XXXX0011b   mem 0CC000h - 0CFFFFh
    choice "D0000-D3FFF"   pos[3]=XXXX0100b   mem 0D0000h - 0D3FFFh
    choice "Disabled"      pos[3]=XXXX0000b


    Help

"This selection assigns the second memory address range
 used by the FHL-8121. Use the F5=Previous and the F6=Next
 keys to change this assignment. Conflicting assignments
 are marked with an asterisk and must be changed."