Configurable bus

摘要

A configurable bus includes a plurality of bus segments. The configurable bus also includes two or more pluralities of input/output (I/O) ports. Each bus segment is coupled to at least one of the pluralities of I/O ports. Also coupled to the bus segments is a cross-couple unit that is configurable to selectively couple any of the bus segments together.

主权项

1. A device comprising:
an analog block array; a first analog bus segment coupled to the analog block array; a second analog bus segment coupled to the analog block array; a third analog bus segment coupled to the analog block array; a fourth analog bus segment, coupled to the analog block array; a first I/O pin selectively couplable to the first analog bus segment; a second I/O pin selectively couplable to the second analog bus segment; a third I/O pin selectively couplable to the third analog bus segment; a fourth I/O pin selectively couplable to the fourth analog bus segment; a first switch configured to selectively propogate a first analog signal on the first analog bus segment to the second analog bus segment; a second switch configured to selectively propogate a second analog signal on the first analog bus segment to the third analog bus segment; a third switch configured to selectively propogate a third analog signal on the second analog bus segment to the fourth analog bus segment; a fourth switch configured to selectively propogate a fourth analog signal on the third analog bus segment to the fourth analog bus segment; wherein,
in a first mode of operation, the first, second, third, and fourth switches are open,in a second mode of operation, the first switch is closed, andin a third mode of operation, the second switch is closed.