User manual

Chapter 2 Functional Overview
VXI-MXI-2 User Manual 2-2 © National Instruments Corporation
VXIbus
Slot 0
Functions
VXIbus MXI-2
MXI-2
System
Controller
Functions
MXI-2
Control
Signals
Xcvrs
VMEbus
Control
Signals
Xcvrs
VMEbus
Master
State
Machine
VMEbus
Slave
State
Machine
MXI-2
Master
State
Machine
MXI-2
Slave
State
Machine
MXI-2
Address/
Data and
Address
Modifier
Xcvrs
MXI-2
Parity
Check and
Generation
AD[31-0]
AM[4-0]
CONVERT
PAR
A24/A32
Decoder
Logical
Address
Decoder
A32
Window
A24
Window
A16
Window
LA
Window
DMA
Controller 1
VMEbus
Address
and
Address
Modifier
Xcvrs
A[31-1]
AM[5-0]
VXI-MXI-2
Registers
Onboard
DRAM
SIMMs
VMEbus
Data
Xcvrs
D[31-0]
MXI-2
Terminate
VMEbus
Interrupt
and
Utility
Signal
Xcvrs
IRQ[7-1]
SYSRESET
SYSFAIL
ACFAIL
Interrupt
and Utility
Signal
Circuitry
VXIbus
CLK10
and
TTL & ECL
Trigger
Xcvrs
CLK10 and
Trigger
Circuitry
CLK10
TTL[7-0]
ECL[1-0]
SMB
Xcvrs
EXT CLK
Trigger Out
Trigger In
Front
Panel
SMBs
CLK10
TTL[7-0]
MXI-2
CLK10 and
Trigger
Xcvrs
IRQ[7-1]
SYSRESET
SYSFAIL
ACFAIL
MXI-2
Interrupt
and
Utility
Signal
Xcvrs
VMEbus
Bus
Timeout
Unit
BERR
DMA
Controller 2
Figure 2-1. VXI-MXI-2 Block Diagram