DDR2 Memory Controller Registers | Texas Instruments TMS320C6455

DDR2 Memory Controller Registers

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4DDR2 Memory Controller Registers

Table 17 lists the memory-mapped registers for the DDR2 memory controller. For the memory address of these registers, see the device-specific data manual.

Table 17. DDR2 Memory Controller Registers

Offset	Acronym	Register Description	Section
00h	MIDR	Module ID and Revision Register	Section 4.1
04h	DMCSTAT	DDR2 Memory Controller Status Register	Section 4.2
08h	SDCFG	SDRAM Configuration Register	Section 4.3
0Ch	SDRFC	SDRAM Refresh Control Register	Section 4.4
10h	SDTIM1	SDRAM Timing 1 Register	Section 4.5
14h	SDTIM2	SDRAM Timing 2 Register	Section 4.6
20h	BPRIO	Burst Priority Register	Section 4.7
E4h	DMCCTL	DDR2 Memory Controller Control Register	Section 4.8

38	C6455/C6454 DDR2 Memory Controller	SPRU970G – December 2005 – Revised June 2011
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Texas Instruments TMS320C6455 manual DDR2 Memory Controller Registers, Offset, Register Description

Contents

Users Guide Submit Documentation Feedback Contents List of Figures List of Tables Submit Documentation Feedback Read This First Read This First Purpose of the Peripheral FeaturesFunctional Block Diagram Industry Standards Compliance Statement Memory Map Signal DescriptionsClock Control DDR2 Memory Controller Signal Descriptions Pin Description Command Function DDR2 Sdram CommandsTruth Table for DDR2 Sdram Commands Protocol Descriptions Mode Register Set MRS and Emrs DDR2 MRS and Emrs Command Refresh Mode Refresh Command Actv Command Activation Actv Dcab Command Deactivation Dcab and Deac Deac Command Read Command DDR2 Read Command Addressable Memory Ranges Write WRT CommandMemory Width, Byte Alignment, and Endianness Address Type Generated by DDR2 Bit Field Bit Value Bit Description Bank Configuration Register Fields for Address MappingAddress Mapping Ibank Logical Address-to-DDR2 Sdram Address Map for 32-Bit Sdram Logical Address-to-DDR2 Sdram Address Map DDR2 Memory Controller Interface DDR2 Memory Controller Fifo Description DDR2 Memory Controller Fifo Block Diagram Command Ordering and Scheduling, Advanced Concept Command Starvation Refresh Urgency Levels Refresh SchedulingPossible Race Condition Urgency Level Description Device and DDR2 Memory Controller Reset Relationship Self-Refresh ModeReset Considerations DDR2 Memory Controller Reset Effect Initiated by DDR2 Sdram Extended Mode Register 1 Configuration 11.1 DDR2 Sdram Device Mode Register Configuration ValuesDDR2 Sdram Mode Register Configuration Mode Register Field Interrupt Support 11.2 DDR2 Sdram Initialization After Reset11.3 DDR2 Sdram Initialization After Register Configuration Edma Event Support Using the DDR2 Memory Controller Connecting the DDR2 Memory Controller to DDR2 Sdram Connecting to Two 16-Bit DDR2 Sdram Devices Connecting to a Single 16-Bit DDR2 Sdram Device Connecting to Two 8-Bit DDR2 Sdram Devices Programming the Sdram Refresh Control Register Sdrfc Programming the Sdram Configuration Register SdcfgSdcfg Configuration Field Configuring Sdram Timing Registers SDTIM1 and SDTIM2 DDR2 Memory Refresh SpecificationSdrfc Configuration SDTIM1 Configuration DDR2 Sdram Data Register Field Sheet Parameter SDTIM2 ConfigurationDmcctl Configuration Name Description Register Description DDR2 Memory Controller RegistersOffset Bit Field Value Description Module ID and Revision Register MidrModule ID and Revision Register Midr Field Descriptions DDR2 Memory Controller Status Register Dmcstat Ifrdy Sdram Configuration Register Sdcfg Sdram Configuration Register Sdcfg Field Descriptions Sequence. Values 4-7 are reserved for this field Sdram Refresh Control Register Sdrfc Sdram Refresh Control Register Sdrfc Field Descriptions Trfc TRP Trcd TWR Sdram Timing 1 Register SDTIM1Sdram Timing 1 Register SDTIM1 Field Descriptions Tras TRC Trrd Using this formula Todt Txsnr Sdram Timing 2 Register SDTIM2Sdram Timing 2 Register SDTIM2 Field Descriptions Txsrd Trtp Tcke Prioraise Burst Priority Register BprioBurst Priority Register Bprio Field Descriptions DDR2 Memory Controller Control Register Dmcctl DDR2 Memory Controller Control Register Dmcctl Revision History Rfid Products ApplicationsDSP TI E2E Community Home