Datasheet

146
7734Q–AVR–02/12
AT90PWM81/161
If PSC2RB fuse equals 1 (unprogrammed), PSCOUT20 & PSCOUT21 keep a standard port
behavior. If PSC2RB fuse equals 0 (programmed), PSCOUT20 & PSCOUT21 are forced at
reset to low level or high level according to PSCRV fuse bit. In this second case, PSCOUT20 &
PSCOUT21 keep the forced state until PSOC2 register is written.
If PSC2RBA fuse equals 1 (unprogrammed), PSCOUT22 & PSCOUT23 keep a standard port
behavior. If PSC2RBA fuse equals 0 (programmed), PSCOUT22 & PSCOUT23 are forced at
reset to low level or high level according to PSCRV fuse bit. In this second case, PSCOUT22 &
PSCOUT23 keep the forced state until PSOC2 register is written.
12.26.5 PSC Input Behavior During Reset
For power consumption under reset reason, the state of PSC & PSCR inputs during Reset can
be programmed by fuse PSCINRB.
If PSCINRB fuse equals 1 (unprogrammed), PSC & PSCR input keep a standard port behavior.
If PSCINRB fuse equals 0 (programmed), PSC & PSCR input pull-up are forced while the reset
is active. Affected pins are PSCIN2, PSCINr, PSCIN2A, PSCINrA. To prevent any conflict on
PD1, this fuse has no effect on PSCINrB.