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Texas Instruments TMS320C6452 DSP User Manual

Page 31

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DDR_CLK

DDR_CLK

DDR_CKE

DDR_CS

DDR_WE

DDR_RAS

DDR_CAS

DDR_DQM0

DDR_DQM1

DDR_DQS0

DDR_DQS1

DDR_BA[2:0]

DDR_A[13:0]

DDR_D[15:0]

DDR_VREF

DDR_ODT0

DDR_DQS0

DDR_DQS1

CK

CK

CKE

CS

WE

RAS

CAS

LDM

UDM

LDQS

UDQS

BA[2:0]

A[12:0]

DQ[15:0]

ODT

VREF

LDQS

UDQS

DDR2

memory

x16−bit

VREF

DDR2

memory

controller

DDR_ODT1

DDR_DQGATE0

(A)

DDR_DQGATE1

(A)

DDR_DQGATE2

(A)

DDR_DQGATE3

(A)

Using the DDR2 Memory Controller

Figure 18. Connecting to a Single 16-Bit DDR2 SDRAM Device

A

These pins are used as a timing reference during memory reads. For routing rules, see the device-specific data
manual.

SPRUF85 – October 2007

DSP DDR2 Memory Controller

31

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