DVP-ES3 Series Programming Manual 6.7 I/O Refreshing Instructions 6.7.1 I/O List of I/O Refreshing Instructions The following table lists the I/O Refreshing instructions covered in this section. _6 6-170 API Instruction code Pulse Function instruction 16-bit 32-bit 0600 REF – Refreshing the I/O 0601 – DHSRF Immediate refresh of a high-speed comparative value 0602 REFF – Refreshing the I/O filtering time