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GOWIN SDRAM Interface
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
| RefDesign | SDRAM Controller GW2AR-18 RefDsign | Download |
| User Guide | Gowin SDRAM Controller User Guide | Download |
| RefDesign | SDRAM Controller GW1NR-4 32bit RefDsign | Download |
| RefDesign | SDRAM Controller GW1NR-4 16bit_RefDsign | Download |
| Release Note | Gowin SDRAM Controller Release Note | Download |