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Shareware Supreme Volume 6 #1
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WD-7000.ZIP
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A7FS2
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1990-04-11
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WE ARE IN THE PROCESS OF CONFIGURING A USER GUIDE FOR THE WD7000 PRODUCTS FOR
USE ON THE BULLETIN BOARD. HOWEVER, IN THE INTERIM, THE FOLLOWING JUMPER
DEFINITIONS MAY BE HELPFUL.
WD7000-ASC and WD7000-FASST
Jumper Settings
**************************************************************************
Configuration Jumper Options
**************************************************************************
The following tables illustrate the various jumper options of the WD7000-ASC
SCSI host adapter. A "1" indicates that the jumper is installed; a "0"
indicates no jumper installed.
*PLEASE NOTE THAT THE DEFAULT SETTINGS SHOWN ARE FOR THE WD7000-ASC AND ARE NOT
NECESSARILY THE SAME ON THE WD7000-FASST.
**************************************************************************
"W3" - ASC I/O Address Space
**************************************************************************
These jumpers are used to change the ASC I/O address space when desired.
Address lines SA7-3 are selectable, SA9-8 are fixed at a high level, and all
other lines are just driven by the host bus as required. The ASC is currently
selected to decode 320-323 (SA9-SA0), the LSB 3 bits are used to select onboard
ASC registers; SA9-SA8 are fixed at +5V or a logic "1" level.
* Default Configuration: W-3
SA3 1 │ 0---0 │ 2
SA4 3 │ 0---0 │ 4
SA5 5 │ 0 0 │ 6
SA6 7 │ 0---0 │ 8
SA7 9 │ 0---0 │ 10
SA7 SA6 SA5 SA4 SA3 I/O Address
0 0 0 0 0 3F8H
0 0 0 0 1 3F0H
0 0 0 1 0 3E8H
0 0 0 1 1 3E0H
0 0 1 0 0 3D8H
0 0 1 0 1 3D0H
0 0 1 1 0 3C8H
0 0 1 1 1 3C0H
0 1 0 0 0 3B8H
0 1 0 0 1 3B0H
0 1 0 1 0 3A8H
0 1 0 1 1 3A0H
SA7 SA6 SA5 SA4 SA3 I/O Address
0 1 1 0 0 398H
0 1 1 0 1 390H
0 1 1 1 0 388H
0 1 1 1 1 380H
1 0 0 0 0 378H
1 0 0 0 1 370H
1 0 0 1 0 368H
1 0 0 1 1 360H
1 0 1 0 0 358H
1 0 1 0 1 350H
1 0 1 1 0 348H
1 0 1 1 1 340H
1 1 0 0 0 338H
1 1 0 0 1 330H
1 1 0 1 0 328H
1 1 0 1 1 320H*
1 1 1 0 0 318H
1 1 1 0 1 310H
1 1 1 1 0 308H
1 1 1 1 1 300H
ASC I/O ADDRESS SPACE JUMPERS
**************************************************************************
"W4" BIOS ROM Address Space
**************************************************************************
These jumpers can be used to change the BIOS ROM address space when desired.
Address lines SA16-13 are selectable, SA19-18 are fixed at a high level, SA17
is fixed at a low level and all other lines are just driven by the host bus as
required to access an 8KX8 ROM. The ASC is currently selected to decode CO
(SA19-SA13).
Address Select (W4)
SA19 fixed at +5 V
SA18 fixed at +5 V
SA17 fixed at 0 V
SA16 7 o---o 8
SA15 5 o---o 6
SA14 3 o---o 4
SA13 1 o---o 2
GND │ │ 4.7K
SA16 SA15 SA14 SA13 BIOS ADDRESS
0 0 0 0 DE00H
0 0 0 1 DC00H
0 0 1 0 DA00H
0 0 1 1 D800H
0 1 0 0 D600H
0 1 0 1 D400H
0 1 1 0 D200H
0 1 1 1 D000H
1 0 0 0 CE00H
1 0 0 1 CC00H
1 0 1 0 CA00H
1 0 1 1 C800H
1 1 0 0 C600H
1 1 0 1 C400H
1 1 1 0 C200H
1 1 1 1 C000H *
BIOS ROM ADDRESS SPACE JUMPERS
**************************************************************************
"W2" DRQ/DACK Jumpers
**************************************************************************
ASC uses DMA channels 5, 6, and 7 with channel 6 being the standard
configuration. No other configurations are permitted since a 16 bit host bus
is assumed. Also note that the host must turn on the ASC DMA enable first and
then enable the system DMA channel. This is required since the DMA line is a
tri-state control signal. If this is not done, spurious DMA signals might
occur if the host system DMA is enabled first since the ASC will tri-state this
signal on power up. Any other I/O card that shares the same DMA channel can
also be used to drive this signal to avoid spurious signals.
(W2)
DRQ7 1 │ o o │ 2
* DRQ6 3 │ o---o │ 4
DRQ5 5 │ o o │ 6
DACK7- 7 │ o o │ 8
* DACK6- 9 │ o---o │ 10
DACK5- 11 │ o o │ 12
DMA CHANNEL CONFIGURATION JUMPERS
**************************************************************************
"W1", "W2" IRQ Jumpers
**************************************************************************
The ASC supports IRQ channels 3-5, 7, 9-12, and 14-15 with channel 3 being the
standard configuration. Since this signal is tri-state driven, the same
precaution as the DMA channel enable applies here as well.
(W1) & (W2)
* IRQ3 1 │ o---o │ 2 IRQ15 13 │ o o │ 14
IRQ4 3 │ o o │ 4 IRQ14 15 │ o o │ 16
IRQ5 5 │ o o │ 6 IRQ12 17 │ o o │ 18
IRQ7 7 │ o o │ 8 IRQ11 19 │ o o │ 20
IRQ9 9 │ o o │ 10 IRQ10 21 │ o o │ 22
IRQ CHANNEL CONFIGURATION JUMPERS
**************************************************************************
"W5" Terminator Power
**************************************************************************
The SCSI bus devices are connected together using a daisy chain cable. This
cable should have terminating resistors at each end of the cable. These
resistors are designated Z1 and Z2 on the ASC. All SCSI devices between the
two ends of the cable should not have the terminating resistor packs but one of
them must supply power to these packs via a jumper similar to W5 as shown
below:
(W5)
TRMPWR 1 │ o---o │ 2
**************************************************************************
"W7" Dual Speed Spindle
**************************************************************************
When the jumper is installed, it enables a dual speed, 360 RPM, floppy
spindle. Without the jumper, it disables the dual speed spindle for a single
speed, 300 RPM, floppy.
(W7) = enable dual speed
DRV 1 │ o o │ 2
**************************************************************************
"W8" Floppy Write Precomp Select
**************************************************************************
With the jumper installed, the write precomp value set is 187 NS (for a 1.2 MB
floppy) and with the jumper removed, the write precomp value selected is 125 NS
(usually for a 360 KB floppy).
(W8) = 187 NS precomp (1.2MB), else
= 125 NS precomp (360KB)
PRECOMP 1 │ o o │ 2
**************************************************************************
"W6" & "W9" Floppy Control
**************************************************************************
W6 1 │ o---o │ 2 W6 W9 DESCRIPTION
0 0 Onboard Floppy Enabled
W9 1 │ o---o │ 2 with NO Hard or Combo Card
0 1 Onboard Floppy Enabled
with Hard Card only
1 X Onboard Floppy Disabled *
FLOPPY CONTROL JUMPERS