Compaq AlphaServer ES45 Service Manual page 388

Table D–12 21274 Array Address Register (AAR) (Continued)
Field Bits
RES <11:10>
DSA <9>
SA <8>
RES <7:4>
ROWS <3:2>
BNKS <1:0>
D-28 ES45 Service Guide
Type Init Description
MBZ,RAZ 0 Reserved.
RW 0 Double (Twice)-split array
RW 0 Split array.
MBZ,RAZ 0 Reserved.
RW 0 Number of row bits in the SDRAMs.
Value
0
1
2
3
RW 0 Number of bank bits in the SDRAMs
Value
0
1
2
3
Number of Bits
11
12
13
Reserved
Number of Bits
1
2
3
Reserved