Why can't I write to some Read/Write locations of the Triple-Speed Ethernet Small MAC Command_Config Register? - Why can't I write to some Read/Write locations of the Triple-Speed Ethernet Small MAC Command_Config Register? Description The Triple-Speed Ethernet MegaCore ® Function User Guide incorrecly states the following locations of the Command Config Registers as being RW (Read/Write). The register locations listed below are only RW for the full MAC configuration. When you use the Small MAC configuration, these registers are R (read only) due to the reduced functionality offered by this variant of the IP. i) PAD_EN (read back as 0) ii) ETH_SPEED (read back as 0) ii) LOOP_ENA (read back as 0) iii) MAGIC_ENA (read back as 0) iv) SLEEP (read back as 0) v) NO_LGTH_CHECK (read back as 1) Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']