Detailed System Description; Power Requirements; Cpu, Boards, Ram; Cpus Of This Microspace Product - DIGITAL-LOGIC MICROSPACE PC/104 Technical User's Manual

DIGITAL-LOGIC AG
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ETAILED
This systems has a system configuration based on the ISA architecture. Check the I/O and the Mem-
ory map in this chapter.
4.1

Power Requirements

The power is connected through the AT96 Bus connector; or the PC/104 Power connector; or the
separate power connector on the board. The supply uses only the +5 volts and ground connection.
The LCD-BIAS voltage is generated onboard from the 5 volt or from 12 volt (better quality).
WARNING:
Tolerance of 5 V supply:
ATTENTION:
The precise power requirements of the MICROSPACE MSM486V depend on a number of factors, in-
cluding what functions are present on the board and which peripherals are connected to the board's
I/0 ports: For example, AT-keyboards draw their power from the keyboard connector on the MICRO-
SPACE MSM486V board, and therefore add keyboard current to the total power drawn by the board
from its power supply.
CPU: Clock:
486SLC-25 25MHz
486SLC2-50 50MHz
HD start current:
AT-keyboard:
4.2

CPU, Boards, RAM

4.2.1

CPUs of this MICROSPACE Product

Processor: Type:
386SXL AMD
486SLC25 TI
486SLC25 TI
486SLC25 TI
486SXLC50/2 TI
486SXLC50/2 TI
486SXLC50/2 TI
486SXLC50/2 TI
The special programs M5.EXE (from Cyrix) and TI486SXL.EXE (from TI), which are available on the
tooldisk and on the DIGITAL-LOGIC's BBS (++41 32 681 53 34), are needed to enable the clock dou-
S D
YSTEM
Make sure that the power plug is wired correctly before supplying power
to the board! A built-in diode protects the board against reverse polarity.
5Volt ± 5%; Power-fail signal starts at ± 5% of 5 volt norm and generates
a reset status for the MICROSPACE PC.
With the harddisk connected at the IDE 44 pins interface, the power re-
quirement is high. The peak current must be enough to spin up the HD-
motor. The typical spin-up current of the harddisk is 0,8 - 1,5Amp at 5V.
Too little current will drop the voltage to under 5 volts for a short time.
Due to this undervoltage, the system or the harddisk stops or falters. The
VGA could also be "snowy".
Memory: no Harddisk:
8 MByte 0.8 A
8 MByte 0.9 A
ST-9096A Seagate 2,5" 80 MBytes
ca. 120 mA
Clock: M5.EXE: TI486SXL.EXE: Landmark MHz: Landmark
Units:
25MHz
25MHz
25MHz yes, C+
25MHz yes, +
25MHz yes, C+
25MHz yes, +
50MHz yes, D+
50MHz yes, + yes, D+
18
ESCRIPTION
Onboard mounted Kittyhawk HD:
HD-130MByte:
1.5 A
1.6 A
24,0MHz
8,7MHz
8,7MHz
8,7MHz
7,8MHz
8,8MHz
11,6MHz
17,6MHz
MSM486V Manual V3.22
HD-PowerUp:
2.0 A
2.1 A
ca. 0.8 A
19,3
15,6
15,6
77,7
16,3
77,8
16,5
148,7