SM320C6455-EP

FIXED-POINT DIGITAL SIGNAL PROCESSOR

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SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008

7.9.2DDR2 Memory Controller Peripheral Register Description(s)

Table 7-40. DDR2 Memory Controller Registers

HEX ADDRESS RANGE

ACRONYM

REGISTER NAME

7800 0000

MIDR

DDR2 Memory Controller Module and Revision Register

7800 0004

DMCSTAT

DDR2 Memory Controller Status Register

7800 0008

SDCFG

DDR2 Memory Controller SDRAM Configuration Register

7800 000C

SDRFC

DDR2 Memory Controller SDRAM Refresh Control Register

7800 0010

SDTIM1

DDR2 Memory Controller SDRAM Timing 1 Register

7800 0014

SDTIM2

DDR2 Memory Controller SDRAM Timing 2 Register

7800 0018

-

Reserved

7800 0020

BPRIO

DDR2 Memory Controller Burst Priority Register

7800 0024 - 7800 004C

-

Reserved

7800 0050 - 7800 0078

-

Reserved

7800 007C - 7800 00BC

-

Reserved

7800 00C0 - 7800 00E0

-

Reserved

7800 00E4

DMCCTL

DDR2 Memory Controller Control Register

7800 00E8 - 7800 00FC

-

Reserved

7800 0100 - 7FFF FFFF

-

Reserved

7.9.3DDR2 Memory Controller Electrical Data/Timing

The Implementing DDR2 PCB Layout on the TMS320C6455 application report (literature number SPRAAA7) specifies a complete DDR2 interface solution for the C6455 as well as a list of compatible DDR2 devices. TI has performed the simulation and system characterization to ensure all DDR2 interface timings in this solution are met; therefore, no electrical data/timing information is supplied here for this interface.

TI only supports designs that follow the board design guidelines outlined in the SPRAAA7 application report.

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C64x+ Peripheral Information and Electrical Specifications

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Texas Instruments SM320C6455-EP manual 2 DDR2 Memory Controller Peripheral Register Descriptions