MB86967

The MB86967 is a highly-integrated, high-performance single-chip Ethernet LAN controller which contains a PC card interface based on the JEIDA4.2 standard, an ISA bus interface that can be connected directly to the ISA bus, a general-purpose bus interface, a Manchester encoder/decoder based on the IEEE802.3 standard, and 10BASE-T transceiver.

The LAN controller and buffer manager are software compatible with the MB86967 and MB86964. The buffer manager has functions for arbitration and buffer management of external buffer memory (SRAM) which can be expanded to 32 KB. The MB86967 provide simultaneous access from the host and data link controller and updating of transmit and receive buffer pointers. This permits substantial reduction of software overhead in buffer
management.

The MB86967 Manchester encoder/decoder and 10BASE-T transceiver can be easily interfaced with twisted-pair cable just by addition of a pulse transformer and filter.

Mode pin setting of MB86967 allows the system interface to switch between the PC card interface, ISA bus interface, and general-purpose bus interface. When in the ISA bus interface mode, two modes can be selected: a jumperless mode allowing software setting of I/O addresses and interrupt signals, and a jumper mode allowing DIPswitch setting.