Apr 2, 2025 #1 P pacman22 Junior Member level 2 Joined Oct 11, 2022 Messages 21 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 208 This is a reset circuit from Xilinx ZCU106 evaluation board. What is the purpose of D5 and D6 diodes here? Are they really needed? Attachments Capture.PNG 145.2 KB · Views: 49
This is a reset circuit from Xilinx ZCU106 evaluation board. What is the purpose of D5 and D6 diodes here? Are they really needed?
Apr 2, 2025 #2 D.A.(Tony)Stewart Advanced Member level 7 Joined Sep 26, 2007 Messages 10,283 Helped 1,867 Reputation 3,739 Reaction score 2,513 Trophy points 1,413 Location Richmond Hill, ON, Canada Activity points 64,800 pacman22 said: This is a reset circuit from Xilinx ZCU106 evaluation board. What is the purpose of D5 and D6 diodes here? Are they really needed? Click to expand... Assuming a certain impedance of wire to remote enclosure switches, can you think of any reason why AMD would include them in this design? Upvote 0 Downvote
pacman22 said: This is a reset circuit from Xilinx ZCU106 evaluation board. What is the purpose of D5 and D6 diodes here? Are they really needed? Click to expand... Assuming a certain impedance of wire to remote enclosure switches, can you think of any reason why AMD would include them in this design?
Apr 2, 2025 #3 danadakk Advanced Member level 6 Joined Mar 26, 2018 Messages 3,798 Helped 439 Reputation 902 Reaction score 883 Trophy points 1,393 Activity points 17,507 Looks like logic is MR disabled if P-B activated and header jumper absent. Last edited: Apr 2, 2025 Upvote 0 Downvote
Apr 2, 2025 #4 D.A.(Tony)Stewart Advanced Member level 7 Joined Sep 26, 2007 Messages 10,283 Helped 1,867 Reputation 3,739 Reaction score 2,513 Trophy points 1,413 Location Richmond Hill, ON, Canada Activity points 64,800 Two input functions are diode isolated logic pulled low with the MR jumper =0 Upvote 0 Downvote