Compaq AlphaServer ES40 - D-13 21272-CA Array Address Register (AAR)

D-36 Compaq AlphaServer ES40 Service Guide
Table D–13 21272-CA Array Address Register (AAR) (Continued)
Field Bits Type Init Description
RES
<7:4> MBZ,RAZ 0 Reserved.
ROWS
<3:2> RW 0 Number of row bits in the SDRAMs.
Value Number of Bits
011
112
213
3 Reserved
BNKS
<1:0> RW 0 Number of bank bits in the SDRAMs
Value Number of Bits
01
12
2 3 (Typhoon only)
3 Reserved