clock\1307.pdf .....\app95.pdf .....\At1307.asm .....\AT1307.HEX .....\AT1307.LST .....\at89c2051.pdf .....\clock.bmp .....\clock.gif .....\clock16.bmp .....\clockMC.bmp .....\clockMC.bmp.scr .....\clockmcn.bmp .....\t2.SCR .....\test.PCB .....\test.PCB2.PCB .....\test.SCR clock