SIGNAL DESCRIPTION. aCCORDING TO wILLIAM lEVAK, THERE IS AN ERROR UNDER
THE HEADING "nON-mASKABLE iNTERRUPT (nmi)". aBOUT THE MIDDLE OF THE
PARAGRAPH IS THE LINE: "nmi ALSO REQUIRES AN EXTERNAL 3k REGISTER TO vcc
FOR PROPER WIRE-or OPERATION." tHIS, OF COURSE, SHOULD SAY RESISTOR AND
NOT REGISTER.