;
;	Altos SCSI Channel Adapter

;
; Board Identification Block
;
  BOARD
    ID		= "ACS0F02"
    NAME	= "Altos SCSI Channel Adapter"
    MFR		= "Altos Computer Systems"
    CATEGORY	= "MSD"
    SLOT	= EISA
    LENGTH	= 330
    AMPERAGE	= 3800
    SKIRT	= NO
    READID	= YES
    BUSMASTER	= 60
    IOCHECK	= VALID
    DISABLE	= SUPPORTED

  COMMENTS = "This board supports up to two SCSI channels
	with up to 7 SCSI devices per channel.
	The controller on each channel is configured as SCSI ID 7.
	This board terminates one end of the SCSI bus and supplies 
	termination power for the other end.  This board also holds
	an Extension BIOS to allow booting from a disk device
	connected to this adapter."

  HELP = "If either LED CR2 or CR5 (both located along the top edge of the
  	board) is illuminated then the SCSI bus is
  	not receiving termination power for channel 1 or 0, respectively,
	and fuse F1 or F2, respectively, is blown.  Verify that
	bus terminators are installed only at the end of the bus
	and not on any devices along the bus.
  	LED CR6 (viewable from the rear edge of the board) is the 'EISA
	Board Enabled' indicator and must be lite for this board to function.
	LED CR7 (viewable from the rear below CR6) is the activity
	or 'heartbeat' indicator; it should be blinking under 
	normal operation."
  

;
; Initialization Information Block
;
JUMPER(1) = 1
  NAME		= "JP25"
  JTYPE		= INLINE
  VERTICAL	= NO
  REVERSE	= YES
  LABEL		= LOC(1 2) "1" "2"
  FACTORY	= LOC(1^2) 0
  INITVAL	= LOC(1^2) 0
  COMMENTS = "The temporary installation of this jumper causes a hardware
	reset (identical to the RESDRV signal from the EISA bus) to occur
	locally on the SCA board.  The EISA 'Board Enable' 
	signal will be negated.  This jumper is to be used for 
	debug purposes by a qualified technician only."

  HELP = "Permanently installing this jumper will hold the SCA board
  	in a hardware 'reset' condition and not allow it to function."
  

;
; I/O Port Initialization Statement Block
;
  IOPORT(1) = 0ZC85h		;IRQ & BIOS select
    SIZE = BYTE
    INITVAL = 0xxxxxxx

;I/O addresses 0zc88 thru 0zc9f access the SCA 82355 BMIC chip
;For information about the BMIC see the Intel 1990 Peripheral handbook
  
  IOPORT(2) = 0ZC89h		;System INT Enable/Control
    SIZE = BYTE
    INITVAL = 00000000		;Disable EINT (all Doorbell INTs) from SCA

  IOPORT(3) = 0ZC8eh		;Host Doorbell INT Enable
    SIZE = BYTE
    INITVAL = 00000000		;Disable all Doorbell INTs from SCA to Host

  IOPORT(4) = 0ZC8fh		;Host Doorbell INT Status
    SIZE = BYTE
    INITVAL = 11111111		;Clear all pending Doorbell INTs from SCA

  IOPORT(5) = 0ZC90h		;Command port		(BMIC MailBox0)
    SIZE = BYTE
    INITVAL = 00000000		;'Assign SCSI drives to ISA interface' cmd

  IOPORT(6) = 0ZC9dh		;Host IRQ & BIOS address (BMIC MailBox13)
    SIZE = BYTE
    INITVAL = 0xxxxxxx

  IOPORT(7) = 0ZC9eh		;Primary Drive assignment (BMIC MailBox14)
    SIZE = BYTE
    INITVAL = 0000xxxx

  IOPORT(8) = 0ZC9fh		;Secondary Drive assignment (BMIC MailBox15)
    SIZE = BYTE
    INITVAL = 0000xxxx

 ;NOTE- This port is used to signal the SCA local processor that all
 ; configuration values have been programmed, thus this Port must be
 ; initialized LAST!

;  IOPORT(9) = 0ZC8dh		;Local Doorbell INT/Status
;    SIZE = BYTE
;    INITVAL = 0000000x		;Tell SCA if & when Setup is done


;
; Function Statement Block
;
FUNCTION = "SCSI Channel Adapter"
  TYPE = "MSD,SCSI,BMIC"
  COMMENTS = "This board does not need an IRQ assigned for the
	Extension BIOS to function and allow booting from a disk
	device connected to the adapter."
  
  CHOICE = "IRQ Assignment"
	LINK
        IRQ = 14|15|7|12|11|5|10|6|9|{}
		SHARE = "msd" 	
		TRIGGER = LEVEL
		INIT = IOPORT(1)LOC(3-0) 1110 | 1111 | 0111 | 1100 | 1011 |
			0101 | 1010 | 0110 | 1001 | 0000
		INIT = IOPORT(6)LOC(3-0) 1110 | 1111 | 0111 | 1100 | 1011 |
			0101 | 1010 | 0110 | 1001 | 0000
	FREE
	PORT = 0zc80h-0zcafh


GROUP = "SCA 'Boot' Configuration"
  TYPE = "MSD,SCSI,BIOS"

FUNCTION = "SCA Extension BIOS"
  COMMENTS = "The BIOS extension ROM on this card allows booting
		from a disk device connected to this adapter.
		A maximum of one SCA
		adapter per system can have its Extension BIOS enabled."
  CONNECTION = "The ALTOS SCSI Channel Adapter Board has
                two connectors.  The internal connector (along the top
		edge of the board) is channel 0 and the external connector
		(along the rear edge of the board) is channel 1."
  HELP = "If either LED CR2 or CR5 (both located along the top edge of the
  	board) is illuminated then the SCSI bus is
  	not receiving termination power for channel 1 or 0, respectively,
	and fuse F1 or F2, respectively, is blown.  Verify that
	bus terminators are installed only at the end of the bus
	and not on any devices along the bus."

	CHOICE = "Enabled"
	LINK
	MEMORY = 4K
	ADDRESS = 0d0000h|0d4000h|0d8000h|0dc000h|0C8000h|0cc000h|0E0000h
		MEMTYPE = OTH
		WRITABLE = NO
		SIZE = BYTE
		CACHE = YES
		SHARE = NO
	INIT = IOPORT(1)LOC(6-4) 011|100|101|110|001|010|111
	INIT = IOPORT(6)LOC(6-4) 011|100|101|110|001|010|111
	FREE
 	INIT = PORTADR(0ZC89h) 00000000		;Disable EINT
	INIT = PORTADR(0ZC8eh) 00000000		;Disable all Doorbell INTs
	INIT = PORTADR(0ZC8fh) 11111111		;Clear all pending INTs
	INIT = PORTADR(0ZC90h) 00000000		;'Assign SCSI drives' cmd
	INIT = PORTADR(0ZC8dh) 00000001		;Doorbell INT to 'map drives'
	PORT = 0z007h			;Don't allow 'None' for Boot Drive

	;The following set of ports are not decoded by the SCA adapter
	;but are used here to allow ONLY one adapter to be the Boot Device.
	;If multiple SCA disk controllers are present
	;in the system, only one adapter will be allowed to use these ports.
	;The remaining SCA adpaters will have their BIOS disabled.
	PORT = 0170h-0177h			;Secondary AT Task File Ports
		SIZE = BYTE

	CHOICE = "Disabled"
	DISABLE = yes
	FREE
	INIT = IOPORT(1)LOC(6-4) 000	;No BIOS extension
	INIT = IOPORT(6)LOC(6-4) 000	;No BIOS extension
	;Force 'none' for drive assignments
	PORT = 0z000h-0z006h		;Flag 'channel 0,ID 0-6' used
	PORT = 0z010h-0z016h		;Flag 'channel 1,ID 0-6' used


FUNCTION = "SCA Primary (Boot) Drive assignment"
	COMMENTS = "Be sure a Random Access Device is connected to the Channel
		selected and addressed for the SCSI ID selected."
	SUBFUNCTION = "SCSI Channel"

	CHOICE = "0"
		FREE
		PORT = 0z00fh			;Flag 'channel 0' selected
		INIT = IOPORT(7)LOC(3) 0

	CHOICE = "1"
		FREE
		PORT = 0z01fh			;Flag 'channel 1' selected
		INIT = IOPORT(7)LOC(3) 1

	SUBFUNCTION = "SCSI ID"

	CHOICE = "0"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z000h			;Flag 'channel 0,ID 0' used
		INIT = IOPORT(7)LOC(2-0) 000

		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z010h			;Flag 'channel 1,ID 0' used
		INIT = IOPORT(7)LOC(2-0) 000

	CHOICE = "1"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z001h			;Flag 'channel 0,ID 1' used
		INIT = IOPORT(7)LOC(2-0) 001
		
		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z011h			;Flag 'channel 1,ID 1' used
		INIT = IOPORT(7)LOC(2-0) 001

	CHOICE = "2"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z002h			;Flag 'channel 0,ID 2' used
		INIT = IOPORT(7)LOC(2-0) 010
		
		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z012h			;Flag 'channel 1,ID 2' used
		INIT = IOPORT(7)LOC(2-0) 010

	CHOICE = "3"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z003h			;Flag 'channel 0,ID 3' used
		INIT = IOPORT(7)LOC(2-0) 011
		
		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z013h			;Flag 'channel 1,ID 3' used
		INIT = IOPORT(7)LOC(2-0) 011

	CHOICE = "4"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z004h			;Flag 'channel 0,ID 4' used
		INIT = IOPORT(7)LOC(2-0) 100
		
		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z014h			;Flag 'channel 1,ID 4' used
		INIT = IOPORT(7)LOC(2-0) 100

	CHOICE = "5"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z005h			;Flag 'channel 0,ID 5' used
		INIT = IOPORT(7)LOC(2-0) 101
		
		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z015h			;Flag 'channel 1,ID 5' used
		INIT = IOPORT(7)LOC(2-0) 101

	CHOICE = "6"
		SUBCHOICE
		FREE
		PORT = 0z01fh
		PORT = 0z006h			;Flag 'channel 0,ID 6' used
		INIT = IOPORT(7)LOC(2-0) 110
		
		SUBCHOICE
		FREE
		PORT = 0z00fh
		PORT = 0z016h			;Flag 'channel 1,ID 6' used
		INIT = IOPORT(7)LOC(2-0) 110

	CHOICE = "none"
		DISABLE = yes
		FREE
		PORT = 0z007h
		INIT = IOPORT(7)LOC(2-0) 111


FUNCTION = "SCA Secondary Drive assignment"

	SUBFUNCTION = "SCSI Channel"

	CHOICE = "0"
		FREE
		PORT = 0z02fh			;Flag 'channel 0' selected
		INIT = IOPORT(8)LOC(3) 0

	CHOICE = "1"
		FREE
		PORT = 0z03fh			;Flag 'channel 1' selected
		INIT = IOPORT(8)LOC(3) 1

	SUBFUNCTION = "SCSI ID"

	CHOICE = "0"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z000h			;Flag 'channel 0,ID 0' used
		INIT = IOPORT(8)LOC(2-0) 000
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z010h			;Flag 'channel 1,ID 0' used
		INIT = IOPORT(8)LOC(2-0) 000

	CHOICE = "1"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z001h			;Flag 'channel 0,ID 1' used
		INIT = IOPORT(8)LOC(2-0) 001
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z011h			;Flag 'channel 1,ID 1' used
		INIT = IOPORT(8)LOC(2-0) 001

	CHOICE = "2"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z002h			;Flag 'channel 0,ID 2' used
		INIT = IOPORT(8)LOC(2-0) 010
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z012h			;Flag 'channel 1,ID 2' used
		INIT = IOPORT(8)LOC(2-0) 010

	CHOICE = "3"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z003h			;Flag 'channel 0,ID 3' used
		INIT = IOPORT(8)LOC(2-0) 011
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z013h			;Flag 'channel 1,ID 3' used
		INIT = IOPORT(8)LOC(2-0) 011

	CHOICE = "4"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z004h			;Flag 'channel 0,ID 4' used
		INIT = IOPORT(8)LOC(2-0) 100
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z014h			;Flag 'channel 1,ID 4' used
		INIT = IOPORT(8)LOC(2-0) 100

	CHOICE = "5"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z005h			;Flag 'channel 0,ID 5' used
		INIT = IOPORT(8)LOC(2-0) 101
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z015h			;Flag 'channel 1,ID 5' used
		INIT = IOPORT(8)LOC(2-0) 101

	CHOICE = "6"
		SUBCHOICE
		FREE
		PORT = 0z03fh
		PORT = 0z006h			;Flag 'channel 0,ID 6' used
		INIT = IOPORT(8)LOC(2-0) 110
		
		SUBCHOICE
		FREE
		PORT = 0z02fh
		PORT = 0z016h			;Flag 'channel 1,ID 6' used
		INIT = IOPORT(8)LOC(2-0) 110

	CHOICE = "none"
		FREE
		INIT = IOPORT(8)LOC(2-0) 111


ENDGROUP