TMPR4937 datasheet(258/552 Pages) TOSHIBA

tên linh kiện	TMPR4937

Giải thích chi tiết về linh kiện	64-Bit TX System RISC TX49 Family

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Chapter 9 SDRAM Controller

9-42

9.6

SDRAM Usage Example

Figure 9.6.1 illustrates an example SDRAM connection. Figure 9.6.2 illustrates an example SDRAM

DIMM (168-pin) connection.

Figure 9.6.1 SDRAM (×16 bits) Connection Example

Figure 9.6.2 168-pin DIMM Connection Example

D [63:48]

ADDR [17:5]

SDRAM (

×16 bits)

D [15:0]

DQM [6]

DQM [7]

DQM [1] DQM [0]

ADDR [19]

ADDR [18]

UDQM LDQM

A [12:0]

BS0

BS1

CS*

RAS*

CAS*

WE*

CLK

CKE

DQ [15:0]

UDQM LDQM

A [12:0]

BS0

BS1

CS*

RAS*

CAS*

WE*

CLK

CKE

DQ [15:0]

UDQM LDQM

A [12:0]

BS0

BS1

CS*

RAS*

CAS*

WE*

CLK

CKE

DQ [15:0]

D [47:32]

D [31:16]

DQM [5] DQM [4] DQM [3] DQM [2]

DQM [7:0]

ADDR [19:5]

SDCS*[0]

RAS*

CAS*

WE*

SDCLKIN

SDCLK [0]

CKE

DATA [63:0]

TX4937

UDQM LDQM

A [12:0]

BS0

BS1

CS*

RAS*

CAS*

WE*

CLK

CKE

DQ [15:0]

TX4937

ADDR[19]

ADDR[16:5]

ADDR[18]

A[11:0]

BA0

BA1

DQMB[7:0]

RAS*

CAS*

WE*

CKE0

CKE1

CK0

CK1

DQ[63:0]

128MB unbuffer DIMM

× 2

A[11:0]

BA0

BA1

DQMB[7:0]

RAS*

CAS*

WE*

CKE0

CKE1

CK0

CK1

DQ[63:0]

ADDR[19:5]

DQM[7:0]

SDCS[0]*

SDCS[1]*

RAS*

CAS*

WE*

CKE

SDCLKIN

SDCLK[0]

SDCLK[1]

SDCLK[2]

SDCLK[3]

DATA[63:0]

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