AM1810 Datasheet, PDF (106/259 Pages) Texas Instruments – AM1810 ARM Microprocessor For PROFIBUS

AM1810
SPRS709B – NOVEMBER 2010 – REVISED DECEMBER 2011
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5.11 DDR2/mDDR Controller
The DDR2/mDDR Memory Controller is a dedicated interface to DDR2/mDDR SDRAM. It supports JESD79-2A standard compliant DDR2 SDRAM
devices and compliant Mobile DDR SDRAM devices.
The DDR2/mDDR Memory Controller support the following features:
• JESD79-2A standard compliant DDR2 SDRAM
• Mobile DDR SDRAM
• 512 MByte memory space for DDR2
• 256 MByte memory space for mDDR
• CAS latencies:
– DDR2: 2, 3, 4 and 5
– mDDR: 2 and 3
• Internal banks:
– DDR2: 1, 2, 4 and 8
– mDDR:1, 2 and 4
• Burst length: 8
• Burst type: sequential
• 1 chip select (CS) signal
• Page sizes: 256, 512, 1024 and 2048
• SDRAM autoinitialization
• Self-refresh mode
• Partial array self-refresh (for mDDR)
• Power down mode
• Prioritized refresh
• Programmable refresh rate and backlog counter
• Programmable timing parameters
• Little endian
106 Peripheral Information and Electrical Specifications
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