Size Select For Isbc 86/30 Board; Isbc 86/14 Board Dual Port Ram Size Select - Intel iSBC 86/14 Hardware Reference Manual

PREPARATION FOR USE
Table 2-11. iSBC® 86/14 board Dual Port RAM Size Select (continued)
Dual Port RAM
'Size Selected
16k
bytes; top 1/4
with iSBC 300A RAM
Kultimodule Board
32k bytes; top 1/2
with iSBC 300A RAM
Ku1timodule Board
48lt bytes; top 3/4
with iSBC 300A RAM
Kultimodule Board
64k bytes; all
with iSBC 300A RAM
Ku1timodule Board
Address Range For
Local CPU Access Jumper Configuration Required
OCOOOH-OFFFFH
08000H-OFFFFH
04000H-OFFFFH
OOOOOH-OFFFFH
E234-E235 installed, E236-E237
installed; the as-shipped
configuration.
E234-E235 removed, E236-E237
installed.
E234-E235 installed, E236-E237
removed.
E234-E235 removed, E236-E237
removed; the maximum dual port
RAM capacity.
2-17. SIZE SELECT FOR iSBC 86/30 BOARD. The size of the dual port RAM
on the iSBC 86/30 board may be reduced in 32k byte increments from a
,maximum of 128k bytes to a minimum of 0 bytes. Jumpers E234 through E237
are used to make the selection as listed in Table 2-12.
NOTE
If the iSBC 304 RAM Expansion
Multimodule Board is installed onto the
iSBC 86/30 board, the dual port size
may be doubled from 128k to 256k bytes
and the incremental size selection is
increased from 32k bytes to 64k bytes.
NOte that the on-board address of the dual port memory on the iSBC 86/30
board is always located within the range from 1FFFFH through 00000 (from
3FFFFH through 00000 with an iSBC 304 RAM Expansion Multimodule Board).
Change 1
2-31