Microchip Technology Incorporated
Scan logic for circuit designs with latches and flip-flops

Abstract:

Embodiments of the present disclosure may include a system for scanning a circuit, the embodiments including flip-flops, latches interleaved between the flip-flops, multiplexers configured to propagate scan data between the flip-flops and latches, and scan logic configured to control the multiplexers to load test data into the flip-flops and latches. A first pair of latches are interleaved between a first pair of flip-flops.