The VCON is a low-cost multi-function system controller with passive terminators.
It fits on the rear of the backplane in the slot 1 position.
It produces system clock and power-on reset, with an optional input for a reset switch.
There is a single-level arbiter with a 16, 32, or 64 microsecond time-out,
a bus time-out of 16, 32 or 64 microseconds and an IACK daisy-chain driver.
In addition, the VCON contains a passive termination network.