6.3.8.4 ETA (Eight Trials Allowed)

Asserting this bit (ETA = 0) extends the trials limit to eight incorrect attempts to authenticate or verify a password. The counter (AAC or PAC) will decrement ($FF, $FE, $FC, $F8, $F0, $E0, $C0, $80, $00) with each incorrect attempt. Disabling this bit (ETA = 1) limits authentication and password verification trials to only four incorrect attempts ($FF, $EE, $CC, $88, $00).