ZHCSIS3D September 2018 – June 2025 DP83869HM
PRODUCTION DATA
The DP83869HM can be configured to generate an interrupt when changes of internal status occur. The interrupt allows a MAC to act upon the status in the PHY without polling the PHY registers. The interrupt source can be selected through the interrupt registers, MICR (12h) and FIBER_INT_EN (C18h). The interrupt status can be read from ISR (13h) and FIBER_INT_STTS (C19h) registers. Some interrupts are enabled by default and can be disabled through register access. Both the interrupt status registers must be read to clear pending interrupts. New interrupts are not routed to the interrupt pin until the pending interrupts are cleared.