User manual

Chapter 1 Introduction
VXI-MXI-2 User Manual 1-4 © National Instruments Corporation
• Can extend VMEbus interrupt levels, utility signals, VXIbus TTL
triggers, and CLK10 to MXIbus
• Can source or sense VXIbus TTL and P2 ECL trigger lines
• Supports dynamic configuration of VXIbus devices
• Can operate in either one of two modes: parallel or interlocked
• Allows for optional or user-installable onboard DRAM up to
64 MB, which can be shared with the VXIbus and MXIbus
• Conforms to VXI-6, the VXIbus Mainframe Extender Specification
• Conforms to the MXI-2 specification
• Supports automatic Slot 0 detection
• Supports automatic MXIbus System Controller detection
• Supports automatic MXIbus termination
• Has no restrictions on Commander/Servant hierarchy or physical
location of devices
The VXI-MXI-2 generates all the support signals required by the
VXIbus:
• VMEbus System Controller functions:
– 16 MHz system clock driver
– Data transfer bus arbiter (PRI or RR ARBITER)
– Interrupt acknowledge daisy-chain driver
• VMEbus miscellaneous services:
– VMEbus timeout (BTO)
– Pushbutton system reset switch
• VMEbus master capabilities:
– Access to A16, A24, and A32 address space
– D08(EO), D16, D32, and D64 accesses
– Release-on-Request bus requester (programmable bus
request level)
– Optional FAIR VXIbus requester
• VMEbus slave capabilities:
– A16, A24, and A32 address space
– D08(EO), D16, D32, and D64 accesses
• VMEbus Interrupter
– ROAK or RORA (programmable)