Sharp MZ-5500 Tehnical Manual page 28

v) System switch
Table 2-4-a System . dip switch definition (MZ-5500)
Switch No.
SW1
SW2
SW3
l
SWS
OFF
ON
400 raster (1 D 10,11) CRT 200-raster CRT
Normal mode Selfcheck mode
SW3 SW4 SWS
0 0 0 Standard MFD drive (S4B) DT/DD,
1 0
0
MZ-80BF
IF02,07,09
SW6
SW7
SW8
8086
Open
operated
to user
Reserved
8087 opera ted
Table 2-4-b System dip switch definition (MZ-S600)
Factory
Factüry
Description
setup Description setup
S\o11
OFF High resolution OFF SW5
OFF 8MHz CPU clock
OFF '
display (400
rasters) used
ON Medium resolution
ON SMHz CPU clock
display (200
rasters) used
SW2 OFF Normally OFF SW6 OFF 8087 numerical
processor not
used·
ON Seifeheck mode* ON 8087. numerical
processor used
SW3 Fixed to ON ON SW7
SW4
- ­ - ---
Fixed to OFF
- - - ­
OFF SW8
System switches of the MZ-5500/5600 are assigned to functions shown in
Tables 2-3-a and 2-3-b. As these switches are assigned to bit, ID2 - ID7 of
the 1/0 address 60H for all models, they are sensed by the IPL at power on.
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