My "CEBAF PRETRIGGER DISCRIMINATOR BOARD FUNCTIONAL CHECKOUT" note dated
3-97, FAXed to Elton 3-20-97 gives details on this, as follows:
"If the board is address switch selected as <F>h, Threshold is programmed as
ffffd0<F>0h xxxxh (12-bits). Width as ffffd0<F>4h ffxxh (8-bits). Mask as
ffffd0<F>8h xxxxh (16-bits) The DIP switch allows address settings of <0>h
through <F>h (sixteen choices)."
Example:
MASK: ffffd0f8 0000h enables all "Doubles" outputs.
MASK: ffffd0f8 ffffh disables all "Doubles" outputs.
MASK: ffffd0f8 aaaah even "Doubles" masked OFF, odds ON.
MASK: ffffd0f8 5555h odd "Doubles" masked ON, evens OFF.
This example assumes board is addressed to <f>h.