SNIP_CLASSIC_ETH_SECTION_8_4_7_Eth_WriteMii

8.4.7 Eth_WriteMii [SWS_Eth_00058] Definition of API function Eth_WriteMii ⌈ Service Name Eth_WriteMii Syntax Std_ReturnType Eth_WriteMii ( uint8 CtrlIdx, uint8 TrcvIdx, uint8 RegIdx, uint16 RegVal ) Service ID [hex] 0xa0 Sync/Async Synchronous Reentrancy Reentrant for different CtrlIdxs, non reentrant for the same CtrlIdx. CtrlIdx Index of the controller. TrcvIdx Index of the transceiver on the SMI. RegIdx Index of the transceiver register on the SMI. Parameters (in) RegVal Value to be written into the indexed register. Parameters (inout) None Parameters (out) None Return value Std_ReturnType E_OK: Service accepted E_NOT_OK: Service denied Description Writes a transceiver register. Available via Eth.h ⌋ [SWS_Eth_00286] Status: DRAFT ⌈The function shall check the communication with the Ethernet Controller. If the check fails, the function shall report the runtime error code ETH_E_COMMUNICATION and return E_NOT_OK.⌋ [SWS_Eth_00278] Status: DRAFT Upstream requirements: SRS_Eth_00148 ⌈The function shall write the specified transceiver register through the MII according to Clause 22 [17] for the indexed controller.⌋ [SWS_Eth_00273] Upstream requirements: SRS_Eth_00148 ⌈If Clause 45 registers need to be writen via this access mechanism, the API shall use the register 13 and 14 to access them as explicitly specified by the annex 22D [17].⌋ [SWS_Eth_00287] Status: DRAFT Upstream requirements: SRS_Eth_00147, SRS_Eth_00146 ⌈If EthCtrlEnableSpiInterface is TRUE, the function shall process the write request as described in the TC6 [11].⌋ [SWS_Eth_00390] Sync write Status: DRAFT Upstream requirements: SRS_Eth_00148, SRS_Eth_00147, SRS_Eth_00146 ⌈The function shall write the MDIO synchronously and return E_OK when the access finished.⌋ [SWS_Eth_00062] ⌈The function shall be pre compile time configurable On/Off by the configuration parameter: EthCtrlEnableMii [ECUC_Eth_00012].⌋ [SWS_Eth_00063] ⌈Eth_Init() shall be called before Eth_WriteMii().⌋