'
6
5
4
3
2
1
0
Optional control status register
Write Read
Interrupt enable Interrupt enable
User definable don't care
Local reset must be
0
User definable don't care
User definable
INT2 pending
User definable
INT6 pending
User definable
INT7 pending
User definable
I
am pulling INT
(44146)
7
6
5
4
3
2
1
0
Reserved
Write
Not defined must be
00
(4814A)
7
6
5
4
3
2 1
0
Base address register, write only
=These bits are compared with A23 through A1
6
(or fewer) to determine the base address of this
board.
(4Cl4
E)
xxxxxxxx
Optional "shut up" address, a write to this ad-
dress will cause the board to pass
its
config out
and then never again respond to any address.
RESET will re-enable the board. The actual ad-
dress that has this effect is
4C.
A
write to 4E
is
ignored. This
is
write only.
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Reserved, must be
00
Note: The actual reserved values will be
FF
rather than
00,
because the system will invert them. See
the section on reading
110 locations for more information.
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