LAN89218 includes a physical interface (PHY) and an SRAM-like slave port, which is a simple, yet highly functional Host Bus Interface. This interface provides a glueless connection to most common 32-bit and 16-bit microprocessors and microcontrollers. Additionally, a programmable interrupt controller allows optimizing performance by selecting polarity, de-assertion interval, and an open-drain output configuration. A General Purpose (GP) timer can be used to generate periodic host interrupts