How do I access the UniPHY CSR registers? - How do I access the UniPHY CSR registers? Description In Quartus® II software and IP version 11.0, there is an issue accessing the Control and Status registers in the UniPHY based memory controller. The latest External Memory Interface (EMIF) handbook shows the UniPHY register map and Controller register map as 9-bit addresses (UniPHY at 0x000 and Controller at 0x100). In the actual implementation, the controller CSR address width is 19-bits and the addresses for the register maps specified in the EMIF handbook are incorrect. The following table outlines the correct register maps for 11.0: UniPHY Register Map EMIF Handbook Incorrect Address Correct Address Description 0x001 0x0_0004 Reserved 0x004 0x0_0010 UniPHY Status Register 0 0x005 0x0_0014 UniPHY Status Register 1 0x006 0x0_0018 UniPHY Status Register 2 0x007 0x0_001C UniPHY Memory Init Param Reg 0 Controller Register Map EMIF Handbook Incorrect Address Correct Address Description 0x100 0x4_0000 ALTMEMPHY status/control register 0x110 0x4_0040 Controller status/config register 0x120 0x4_0080 Memory address size register 0 0x121 0x4_0084 Memory address size register 1 0x122 0x4_0088 Memory address size register 2 0x123 0x4_008C Memory timing parameter register 0 0x124 0x4_0090 Memory timing parameter register 1 0x125 0x4_0094 Memory timing parameter register 2 0x126 0x4_0098 Memory timing parameter register 3 0x130 0x4_00C0 ECC control register 0x131 0x4_00C4 ECC status register 0x132 0x4_00C8 ECC error address register This issue is fixed in the Quartus II software version 11.1. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 11.1 novalue ['Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']