DIGITAL-LOGIC MICROSPACE MSM286 Series Technical User's Manual page 55

DIGITAL-LOGIC AG
16 T
HE SYSTEM MULTIFUNCTION LATCH
The multifunction latch allows control several function as powerdown, contrast and watchdog. This
latch can be controlled with the application program. With suspend/resume this latch is also repro-
grammed (Bit 6 and 7).
MSM286:
Programming address is: 2A4 hex
MSM286 Function:
LCD-Contrast 1
LCD-Contrast 2
LCD-Contrast 3
LCD-Contrast 4
VPP Voltage 1=ON/0=OFF
VEE Voltage 1=OFF/0=ON
COM1 / COM2 Power
82C721 UPI Power
17 F -B
AST
This feature is available on Rev D1 and Rev E with the BIOS Version 1.4.x and the F8680.EXE tool.
With the F8680.EXE tool , the FAST-BOOT mode can be enabled or disabled. Default is disabled.
What happens when the FAST-BOOT mode is enabled:
- no memory test in the SuperState init are performed
- several routines in the BIOS are optimized
Ø
If you have a problem with any application, try it again with NORMAL-BOOT mode.
The FAST-BOOT mode gain time upon booting the system.
Boot-time: (all values measured with CGA, for VGA add 1sec to any time)
Mode:
BIOS Version 1.4.x
FASTBOOT without HD-Driver
FASTBOOT with HD-Driver
and no installed Harddisk
FASTBOOT with HD-Driver
and installed Harddisk
Normal Boot Mode with HD-
Driver and installed Harddisk
The current MSM/MSE286 Modules work with 14 or 16 MHz without problems. 18 MHz and 20 MHz
also possible, but the specifications are not guaranteed.
The Boot-time is measured from power-up to the DOS5.0 message / prompt appears on the screen.
!! This value is higher than 16 MHz because the JEIDA/HD timing in the normal mode is incorrect.
The HD-Driver is a BIOS Extension, which is only used, when a IDE-Harddisk should be connected.
JEIDA Controls
LCD Power
(0=Enable / 1= Disable )
( 0=Disable / 1 = Enable)
F
OOT EATURE OF THE
BOOT-Device:
JEIDA
JEIDA
JEIDA
HD
JEIDA
HD
FD
55
Bit Number:
0
1
2
3
4
5
6
7
F8680 PC/C
CPU - CLOCK:
10 MHz 14 MHz 16 MHz 18 MHz 20 MHz 25 MHz
13s 9s 8s
16s 11s 10s
18s 14s 13s
20s 16s 14s
33s 25s 20s
33s 25s 20s
45s
MSM286 Manual V6.4
HIP
7s 6s no test
9s 8s no test
12s 11s no test
13s 12s no test
28s !! error no test
22s error no test