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CHAPTER 3 SYSTEM CONTROLLER
218
Preliminary User’s Manual S15543EJ1V0UM
RAS_B
SDCAS_B
SMA[13:0]
SMD[31:0]
1 M x 16
SDRAM
A[11:0]
DQ[15:0]
RAS_B
CS_B
µ
PD98502
(System
Controller)
µ
PD98502
(System
Controller)
µ
PD98502
(System
Controller)
µ
PD98502
(System
Controller)
SDCAS_B
SDRAS_B
SDWE_B
SDCLK[1:0]
SDQM[2][0]
SDQM[3][1]
SDCS_B
CAS_B
LDQM
UDQM
CLK
WE_B
SMD[31:16]SMD[15:0]
SDRAM Configuration
2 M x 32
SDRAM
4 MB
16 MB
8 MB
CKE
SDCKE[1:0]
SMA[11:0]
32 MB
8 M x 16
SDRAM
SDCLK[0]
SDCKE[0]
SDQM[0]
SDQM[1]
SDCLK[1]
SDCKE[1]
SDQM[2]
SDQM[3]
SMA[11:0]
1 M x 16
SDRAM
A[11:0]
DQ[15:0]
RAS_B
CS_B
CAS_B
LDQM
UDQM
CLK
WE_B
CKE
SMA[13:0]
SMD[31:0]
A[10:0]
DQ[15:0]
RAS_B
CS_B
SDRAS_B
SDWE_B
SDCLK[1:0]
SDQM[3:0]
SDCS_B
CAS_B
DQM[3:0]
CLK
WE_B
SMD[15:0]
CKE
SDCKE[1:0]
SMA[10:0]
SDCLK[0]
SDCKE[0]
SDQM[3:0]
4 M x 16
SDRAM
SMA[13:0]
SMD[31:0]
A[13:0]
DQ[15:0]
RAS_B
CS_B
SDCAS_B
SDRAS_B
SDWE_B
SDCLK[1:0]
SDQM[0][2]
SDCS_B
CAS_B
LDQM
UDQM
CLK
WE_B
SMD[31:16]SMD[15:0]
CKE
SDCKE[1:0]
SMA[13:0]
SDCLK[0]
SDCKE[0]
SDQM[0]
SDQM[1]
SDCLK[1]
SDCKE[1]
SDQM[2]
SDQM[3]
SMA[13:0]
A[13:0]
DQ[15:0]
RAS_B
CS_B
CAS_B
LDQM
UDQM
CLK
WE_B
CKE
4 M x 16
SDRAM
SMA[13:0]
SMD[31:0]
A[13:0]
DQ[15:0]
CS_B
SDCAS_B
SDRAS_B
SDWE_B
SDCLK[1:0]
SDQM[0][2]
SDQM[1][3]
SDCS_B
CAS_B
LDQM
UDQM
CLK
WE_B
SMD[31:16]SMD[15:0]
CKE
SDCKE[1:0]
SMA[13:0]
SDCLK[0]
SDCKE[0]
SDQM[0]
SDQM[1]
SDCLK[1]
SDCKE[1]
SDQM[2]
SDQM[3]
SMA[13:0]
A[13:0]
DQ[15:0]
RAS_B
CS_B
CAS_B
LDQM
UDQM
CLK
WE_B
CKE
8 M x 16
SDRAM
SDQM[1][3]
BA[1:0]
SMA[12:11]