stm32 /stm32h7rs /STM32H7S /ETH /ETH_MACISR

PHY Interrupt This bit is set when rising edge is detected on the ETH_PHY_INTN input. This bit is cleared when this register is read.

PMT Interrupt Status This bit is set when a Magic packet or Wake-on-LAN packet is received in the power-down mode (RWKPRCVD and MGKPRCVD bits in ETH_MACPCSR register). This bit is cleared when Bits[6:5] are cleared because of a Read operation to the PMT control status register (ETH_MACPCSR).

LPI Interrupt Status This bit is set for any LPI state entry or exit in the MAC Transmitter or Receiver. This bit is cleared when the TLPIEN bit of LPI control and status register (ETH_MACLCSR) is read.

MMC Interrupt Status This bit is set high when MMCTXIS or MMCRXIS is set high. This bit is cleared only when all these bits are low.

MMC Receive Interrupt Status This bit is set high when an interrupt is generated in the MMC Rx interrupt register (ETH_MMC_RX_INTERRUPT). This bit is cleared when all bits in this interrupt register are cleared.

MMC Transmit Interrupt Status This bit is set high when an interrupt is generated in the MMC Tx interrupt register (ETH_MMC_TX_INTERRUPT). This bit is cleared when all bits in this interrupt register are cleared.

Timestamp Interrupt Status If the Timestamp feature is enabled, this bit is set when any of the following conditions is true: The system time value is equal to or exceeds the value specified in the Target Time High and Low registers. There is an overflow in the Seconds register. The Target Time Error occurred, that is, programmed target time already elapsed. If the Auxiliary Snapshot feature is enabled, this bit is set when the auxiliary snapshot trigger is asserted. When drop transmit status is enabled in MTL, this bit is set when the captured transmit timestamp is updated in the Tx timestamp status nanoseconds register (ETH_MACTXTSSNR) and Tx timestamp status seconds register (ETH_MACTXTSSSR) registers. When PTP offload feature is enabled, this bit is set when the captured transmit timestamp is updated in the Tx timestamp status nanoseconds register (ETH_MACTXTSSNR) and Tx timestamp status seconds register (ETH_MACTXTSSSR) registers, for PTO generated Delay Request and Pdelay request packets. This bit is cleared when the corresponding interrupt source bit is read (or corresponding interrupt source bit is written to 1 when RCWE bit of CSR software control register (ETH_MACCSRSWCR) is set) in the Timestamp status register (ETH_MACTSSR).

Transmit Status Interrupt This bit indicates the status of transmitted packets. This bit is set when any of the following bits is set in the Rx Tx status register (ETH_MACRXTXSR): Excessive Collision (EXCOL) Late Collision (LCOL) Excessive Deferral (EXDEF) Loss of Carrier (LCARR) No Carrier (NCARR) Jabber Timeout (TJT) This bit is cleared when the corresponding interrupt source bit is read (or corresponding interrupt source bit is written to 1 when RCWE bit of CSR software control register (ETH_MACCSRSWCR) is set) in the ETH_MACISR register.

Receive Status Interrupt This bit indicates the status of received packets. This bit is set when the RWT bit is set in the Rx Tx status register (ETH_MACRXTXSR). This bit is cleared when the corresponding interrupt source bit is read (or corresponding interrupt source bit is written to 1 when RCWE bit of CSR software control register (ETH_MACCSRSWCR) is set) in the ETH_MACISR register.