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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AM1808AZCE4 데이터시트(PDF) 108 Page - Texas Instruments |
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AM1808AZCE4 데이터시트(HTML) 108 Page - Texas Instruments |
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108 / 264 page  AM1808 SPRS653 – FEBRUARY 2010 www.ti.com 6.11.2 DDR2/mDDR Controller Register Description(s) Table 6-24. DDR2/mDDR Controller Registers BYTE ADDRESS ACRONYM REGISTER DESCRIPTION 0xB000 0000 REVID Revision ID Register 0xB000 0004 SDRSTAT SDRAM Status Register 0xB000 0008 SDCR SDRAM Configuration Register 0xB000 000C SDRCR SDRAM Refresh Control Register 0xB000 0010 SDTIMR1 SDRAM Timing Register 1 0xB000 0014 SDTIMR2 SDRAM Timing Register 2 0xB000 001C SDCR2 SDRAM Configuration Register 2 0xB000 0020 PBBPR Peripheral Bus Burst Priority Register 0xB000 0040 PC1 Performance Counter 1 Registers 0xB000 0044 PC2 Performance Counter 2 Register 0xB000 0048 PCC Performance Counter Configuration Register 0xB000 004C PCMRS Performance Counter Master Region Select Register 0xB000 0050 PCT Performance Counter Time Register 0xB000 00C0 IRR Interrupt Raw Register 0xB000 00C4 IMR Interrupt Mask Register 0xB000 00C8 IMSR Interrupt Mask Set Register 0xB000 00CC IMCR Interrupt Mask Clear Register 0xB000 00E4 DRPYC1R DDR PHY Control Register 1 0x01E2 C000 VTPIO_CTL VTP IO Control Register 6.11.3 DDR2/mDDR Interface This section provides the timing specification for the DDR2/mDDR interface as a PCB design and manufacturing specification. The design rules constrain PCB trace length, PCB trace skew, signal integrity, cross-talk, and signal timing. These rules, when followed, result in a reliable DDR2/mDDR memory system without the need for a complex timing closure process. For more information regarding guidelines for using this DDR2/mDDR specification, Understanding TI's PCB Routing Rule-Based DDR2 Timing Specification (SPRAAV0). 6.11.3.1 DDR2/mDDR Interface Schematic Figure 6-16 shows the DDR2/mDDR interface schematic for a single-memory DDR2/mDDR system. The dual-memory system shown in Figure 6-17. Pin numbers for the device can be obtained from the pin description section. 108 Peripheral Information and Electrical Specifications Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM1808 |
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