Functional Description
Figure 4-2. Four-DIMM Configuration with FET switches
CSA[7:6]#, CSB[7:6]#
CSA[5:4]#, CSB[5:4]#
CSA[3:2]#, CSB[3:2]#
CSA[1:0]#, CSB[1:0]#
Group 0
Group 1
SRASA#
SRASB#
SCASA#
SCASB#
DQMA[1,5]
DQMA[7,6,4:2,0]
DQMB[1,5]
WEA#
WEB#
Shift
Register
RGCKE[7:0]#
GCKE
MAA[13:0]
MAB[13:11#, 10, 9:0#]
MD[63:0]
Mux
Mux
FENA
MECC[7:0]
DIMM_CLK[3:0]
DIMM_CLK[7:4]
DIMM_CLK[11:8]
DIMM_CLK[15:12]
SMB_CLK
SMB_DATA
4-16
82443BX Host Bridge Datasheet