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SDRAM CONTROLLER

 

SDRAM is widely used for its high cost-performance. As SDRAM has strict timing requirements and complex logic control, a dedicated controller is required to implement the initialization, data read/write, refresh, and pre charge functions.

 

 

Features 

 

External SDRAM Controller

  • Configurable width of SDRAM data, address, row/column, etc.
  • Configurable SDRAM refresh times, etc.
  • Configurable timing parameters.
  • Configurable SDRAM working clock cycle.
  • Can support any length read/write operation within the range of 1~Page.
  • Supports auto-refresh.
  • Supports self-refresh.
  • Supports power-down. 2Function 2.2Features IPUG279-1.3E 4(30)
  • Supports industry-standard SDRAM.

Fully synthesizable.

 

Embedded SDRAM Controller

  • Displays SDRAM interface parameter values and timing parameters.
  • Supports any length read/write operation within the range of 1~Page.
  • Supports auto-refresh.
  • Supports self-refresh.
  • Supports power-down.
  • Supports industry-standard SDRAM.
  • Fully synthesizable.
  • GW1NR-4 supports two kinds of embedded controller: 32-bit data width and 16-bit data width.
Documents Download
Reference Design SDRAM Controller GW1NR-4 32bit RefDsign Download
Reference Design SDRAM Controller GW1NR-4 16bit_RefDsign Download
RN279-1.0E Gowin SDRAM Controller Release Note Download
IPUG279-1.3E Gowin SDRAM Controller User Guide Download