FM3570 Description
The Fairchild FM3570 replaces the CPU motherboard’s configuration switches with an electronic implementation consisting of a 4/5-bit multiplexed, 1-bit latched port, standard 2-wire bus interface, and non-volatile latches. The FM3570 multiplexes the I-port input signals with two internal non-volatile registers that can be loaded through the serial port. The multiplexer is selected via the serial port and defaults to...