ImageAccel
by Cornerstone
@80A5.ADF - High Resolution Display
@80A5.ADF - DualPage Display (similar, rename to @80A5.ADF)
@80A6.ADF - ImageAccel Display
Ulrich Trunk's Unofficial Cornerstone ImageAccel site Expired!
Drivers
ImageAccel 1
Win95 and Win3.1x
Win NT 4.0
Win NT 3.51
OS/2 Warp 3.0 and 2.1x
CVC (Whazzat?)
MCA Windows 3.x (Not available)
MC164 (thanks, Brad!)
Don't expect too much, the W95 drivers were just warmed over
W3.XX and caused my model 95 to run in DOS mode. Maybe the NT drivers are
better, I don't know as I have never tried them. The W95 drivers do support the
6091-19 as a menu option, which is kind of nice.
LINK (DEAD)
MC164

1A-1H NEC D42273V-10
3J 131.00 MHz
4J ?
5A L1A4678
8A L1A4220
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10J Altera EPB2001LC
11A 438-04ME
13E, 13F Motorola 10H116
VR1 Motorola 7905.2CT
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This card has 8 NEC D42273V-10 VRAM chips.
MC1608C/11

JP1 monitor type selection
JP12 jumper solder pads
JP30 jumper solder pads (shorted)
LED Green LED (?)
P90 15 pin VGA connector
TP1MC1608C/11 12660-003 (BIOS)
U1 50 MHz TTL Osc
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U2 Cornerstone 1212288-200
U50-53,80-83 TC528257J-80
U130 BT467KHF220 RAMDAC
U140 BT471KPJ80 RAMDAC BVE
U111 ICS1562AM PLL (pixel clock)
U151,152,155,156 socket artifacts
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The MC1608C/11 is a 2 MB graphics card capable of driving
fixed frequency monitors. It is no surprise that the Cornerstone monitors
of the time (1993/4) are supported, but – pretty surprisingly – also the
whole of the 6091 series by IBM.
Selecting the monitor is done via a set of jumpers in
the JP1 position of the card (top right corner).
JP1 Settings
Display Type |
JP1 Position |
1 |
2 |
3 |
4 |
Autosync |
on |
on |
on |
on |
Cornerstone Color 19 (1) |
off |
on |
off |
on |
IBM 6091-16 and -19i |
on |
on |
off |
on |
IBM 6091-19 |
on |
off |
on |
on |
IBM 6091-23 |
on |
off |
off |
on |
Cornerstone Color 20/70 (2) |
off |
off |
on |
on |
Cornerstone Color 21/76 (3) |
off |
on |
on |
on |
(1) Not supported for ImageAccel 1280 controller
(2) ImageAccel 1600/70 and 1600/76 controllers only
(3) ImageAccel 1600/76 controller only
More info about setup under NT 4.0 at Ulrich
Trunk's Unofficial
ImageAccel
site
AdapterId 80A6
ImageAccel Display
Primary or Secondary Video
Adapter
Choose primary if ImageAccel is the primary
display, otherwise
choose secondary if VGA is the primary display. (NOTE:
If you select the standard of <Primary> for the
video adapter, you’ll
see all DOS based messages on the monitor attached to
the ImageAccel. <Secondary>
means that you use the ImageAccel only for HiRes output
(which would require
another monitor attached permanently to the BVA).
<"Primary">,
Secondary
I/O base address
Choose a 2 byte I/O block with no conflicts
<"2000"
(2000-2001)>,
2010 (2010-2011), 4000 (4000-4001), 4010 (4010-4011)
Memory base segment address
Choose a 8K memory block with no conflicts.
<"0DE000"
(DE00-DFFF)>,
0DC000 (DC00-DDFF), 0DA000 (DA00-DBFF), 0D0000
(D000-D1FF), 0CE000 (CE00-CFFF),
0CC000 (CC00-CDFF), 0CA000 (CA00-CBFF), 0C0000
(C000-C1FF)
Interrupt Selection
Choose an interrupt with no conflicts.
<"IRQ
10">,
11, 5, 3
The settings are not critical as long as
they don’t conflict
with other
settings.
CS
Fixed
Frequency Color Monitors with ImageAccel Video
Controllers.
Monitor - Color 21/76, Color 20/70, Color 19
The Color 21/76, Color 20/70 and Color 19) are
fixed frequency
color monitors. These monitors are not compatible with
standard VGA video
controllers. Standard VGA video cards require a monitor
that operates at
31.5KHz horizontal scan frequency with a 60Hz vertical
refresh rate. These
monitors have only been tested using the following
ImageAccel video controllers.
Color 21/76 ImageAccel 1 - MC 1608C/11
Color 20/70 ImageAccel 1 - MC 1608C/11,
1608C/12
Color 19 ImageAccel 1
- MC 1608C/10,
1608C/11, 1608C/12
9595 Main Page
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