The i4001 is a 3U form factor M-module carrier for the VMEbus and forms the basics of a flexible I/O system. It offers the user a means of integrating M-modules in a VMEbus system. The i4001 has one M-module slot. M-module interrupts can be passed to the VMEbus. The i4001 supports vector-from-module and vector-from-baseboard, this means that interrupt vectors are provided by the the M-module or by the i4001. The interrupt from the M-module can be masked. The level on which an interrupt is issued to the VMEbus, is selectable by either setting a DIP-switch or by software. The base address of the i4001 is configurable by DIP-switches, which maps it in the standard (A24) or short I/O (A16) space of the VMEbus. The DIP-switches are accessible for configuration when the M-module is mounted.

Features
> Features one M-module slot
> Occupies one 3U VMEbus slot
> Selectable short or standard VMEbus addressing (A16/A24) with byte (even/odd) or word data transfers (D08(E/O)/D16)
> Programmable interrupt controller with D08(O) interrupt vector and I(x) interrupt level characteristics
> Peripheral I/O connectors up front