2.6. DM9000 Network controller

The DM9000 network controller provides 100Mbit Ethernet connectivity to the system. It is decoded into the CS0 address space by the system CPLD as it uses the WAIT line to extend I/O cycles as necessary.

The DM9000 may interrupt the ML675001. The IRQ is connected to the ML675001 IRQ0 signal. The interrupt is shared with the Real Time Clock and is also presented on pin A13 of the PL4 connector.

Figure 2.6. DM9000 to ML675001 attachment

DM9000 to ML675001 attachment