Epson S1C33L03 Manual Do Utilizador

Epson

VI SDRAM CONTROLLER BLOCK: SDRAM INTERFACE

S1C33L03 FUNCTION PART

EPSON

B-VI-2-3

A-1

B-VI

SDRAM

SDA11(A12)
SDA10(P33)

SDA[9:0](A[10:1])

SDBA[1:0](A[15:14])

D[15:0]

BCLK

SDCKE(P20)

#SDCE0(#CE7)
#SDCE1(#CE8)

#SDCAS(#HCAS)

#SDRAS(#LCAS)

#SDWE(P21)

HDQM(P32)

LDQM(P15)

S1C33

A11
A10
A[9:0]
BA[1:0]
DQ[15:0]

CLK
CKE
#CS

#CAS
#RAS
#WE
DQMU
DQML

128M SDRAM

(2M x 16 bits x 4 banks)

A11
A10
A[9:0]
BA[1:0]
DQ[15:0]

CLK
CKE
#CS

#CAS
#RAS
#WE
DQMU
DQML

128M SDRAM

(2M x 16 bits x 4 banks)

Figure 2.3 Connecting two 16-bit SDRAMs (32MB)

SDA[12:11](A[13:12])

SDA10(P33)

SDA[9:0](A[10:1])

SDBA[1:0](A[15:14])

D[7:0]

BCLK

SDCKE(P20)

#SDCE0/1(#CE7/8)

#SDCAS(#HCAS)

#SDRAS(#LCAS)

#SDWE(P21)

LDQM(P15)

S1C33

A[12:11]
A10
A[9:0]
BA[1:0]
DQ[7:0]

CLK
CKE
#CS
#CAS
#RAS
#WE
DQM

128M SDRAM

(4M x 8 bits x 4 banks)

For little endian

SDA[12:11](A[13:12])

SDA10(P33)

SDA[9:0](A[10:1])

SDBA[1:0](A[15:14])

D[15:8]

BCLK

SDCKE(P20)

#SDCE0/1(#CE7/8)

#SDCAS(#HCAS)

#SDRAS(#LCAS)

#SDWE(P21)

HDQM(P32)

S1C33

A[12:11]
A10
A[9:0]
BA[1:0]
DQ[7:0]

CLK
CKE
#CS
#CAS
#RAS
#WE
DQM

128M SDRAM

(4M x 8 bits x 4 banks)

For big endian

Figure 2.4 Connecting an 8-bit SDRAM (16MB)