Table 3-11. Block_A/B/C/D Configurations; Dram Attributes Register - Motorola MVME2600 Series Reference Manual

Falcon ECC Memory Controller Chip Set

DRAM Attributes Register

ADDRESS
3 BIT
NAME
OPERATIO
N
RESET
ram a/b/c/d
siz0-2
%000
%001
%010
%011
3-36
ram a/b/c/d en ram a/b/c/d en enables accesses to the
corresponding block of DRAM when set, and disables
them when cleared.
ram a/b/c/d siz0-2
corresponding block of DRAM. Table 3-11 shows the
block configuration assumed by the Falcon pair for each
value of ram siz0-ram siz2.

Table 3-11. Block_A/B/C/D Configurations

Block
Devices Used
SIZE
- - -
0MB
36 - 1Mx4's
16MB
8 - 1Mx18's
4 - 1Mx36's
32MB
18 - 2Mx8's
144 - 4Mx1's
36 - 4Mx4's
64MB
8 - 4Mx18's
4 - 4Mx36's
$FEF80010
These control bits define the size of their
Technology
-
4Mb
16Mb
4Mb/1Mb
16Mb
4Mb
16Mb
64Mb
16Mb/4Mb
Comments
Block Not Present
SIMM/DIMM
SIMM/DIMM