Planar ADFs
From Tim Clarke
Hi Louis, well, if you looked at the slots, you could (more or less) deduce it for yourself. (sorry, but I've noticed things being hidden in plain sight)
NumSlots n
don't need to explain this
NVRAMSize 8192
usually 8K of 'extended CMOS RAM'
Rom2Ram
128K of 1st MB used to 'shadow' system BIOS
Splitxxx
how much 'conventional' RAM

Split640 or Split512 Determines how much RAM is left over for 'Rom2RAM' and 'Split Memory Block' (SMB) and also how much 'conventional' memory is available. Some memory cards can 'backfill' the 'conventional' memory area, so Split512 doesn't *absolutely* mean that there is only 512KB of 'conventional' RAM. Not a brilliant idea to do it that way though.

Example:
Split640
Rom2RAM in an 8MB machine gives:
000000-09FFFF 
1st 640K of 1st MB
0A0000-0E0000
VGA MGA CGA and adapter space
0E0000-0FFFFF
'Shadowed' system BIOS in 1st 128K of 'SMB'
100000-7FFFFF
2nd through 8th MB of memory
800000-83FFFF
last 256K of 'SMB' (may be 'lost' if >16MB in m/c)

SlotType[n] = x y z
[n]
1 to NumSlots
Number of slot
x
32/24
32 or 16-bit slot addressability
y
0/1
Video extension slot no or yes
z
0/1
Matched memory extension (?) no/yes

DisketteDrive[n] = list
n = Number of 'drive select' signals on cable minus 1.
   (don't you wish they'd be consistent?)
list
0
not installed
1
360K / 5.25"
2
1.2M / 5.25"
3
720K / 3.5"
4
1.44M / 3.5"
6
2.88M / 3.5"
8
reserved or tape

Thanks to Peter for the following section-
   5 was -originally- intended to be used with 2.88MB / 3.5" with 36 sectors á 512 bytes and 1 mbps/s data rate. The IBM 2.88MB uses 18 sectors á 1.024 bytes at 1mbps data rate ... 
   Also not implemented but theoretically possible is the 2.4MB / 5.25" format as used for IBM minis and control-units. Didn't made it due to the better handling of 3.5" disks.
   The 9595 shows 1,2,4,6 in the planar-list ... and this is what "Set
configuration" shows, when you cruise through the settings for FDD(1) and (2) - plus "0" for "Not Installed". FDD(0) knows only 0,4,6 ... !
 

N.B. I have changed this for 5.25" drive support on my Mod. 80 (i.e. added '1' to Drive[1] list) before now. Also, you can figure this out by looking at what is listed in 'Change Config' as you press F5/F6 repeatedly

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