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115
Memory Controller Module
x8 SDRAM configurations
Table 44 identifies the interconnect between the NS7520 and SDRAM when SDRAM is
used in an x8 configuration. An x8 SDRAM configuration typically is constructed using
one x8 SDRAM component.
A22 BA1
BCLK CLK CLK
VCC CKE CKE
D31-D16 D15-D00 D15-D00
NS7520 signal 16M SDRAM signal 64M SDRAM signal
CS/RAS_ CS[4:0]_ CS[4:0]_
CAS3_ RAS_ RAS_
CAS2_ CAS_ CAS_
CAS1_ WE_ WE_
CAS0_ A10/AP A10/AP
BE3_ DQM_ DQM_
BE2_ N/A N/A
BE1_ N/A N/A
BE0_ N/A N/A
A0 A0 A0
A1 A1 A1
A2 A2 A2
Table 44: x8 SDRAM interconnect
NS7520 signal 16M SDRAM signal 64M SDRAM signal
Table 43: x16 SDRAM interconnect