I would like to use ETAS to caracterize a cell but I have some problems with the formats. For example, is I ask for the critical path of a cell (this is for na2_y) I obtain: 1 : M i1 f DU MAX TP = 783 ps RC = 218 ps TP = SF + RC = 728 RC = 218 SF = (728 - 218) C is the capacitance connected to the output (for a nand it is the transistors capacitances) F is the input slope RC is the part of the delay due to the ouput capacitance. SF is the part of the delay due to the input slope. I understand that 783 ps is the internal delay and RC is the delay due to the output load, but I am not sure is this 218 ps are ps/pF or if a value is assumed for the output load. I have looked at the man pages, but I haven't found it. Also the man pages of ttv and dtv are not complete in this sense and ttx and dtx man pages are missing. Where can I found any extra information about all this timing issues? Thanks in advance, Rosa Karim +------------------------------------------------------------+ | _ karim DIOURY | | (_) Equipe ASIM | | _ _ ___ Laboratoire LIP6 | | | | | | | ) Couloir 55-65, 2eme etage, Bureau 230 | | | | | | | 6 ) Universite Pierre et Marie Curie (P6) | | | | |_| | _) 4 place Jussieu, 75252 Paris Cedex 05 | | | |___ | | Tel : 1.44.27.71.24 Fax : 01.44.27.72.80 | | |_____| |_| E-mail : karim.Dioury@lip6.fr | +------------------------------------------------------------+