V120 VME PCI Express Crate Controller

PCI Express Crate Controller - V120
  • PC memory-mapped VME Crate Controller in single-wide 6U format
  • Cabled PCIe connects to PC over up to 7 meter PCI Express cable
  • Provides 8192 16kB VME mapping pages; individual page descriptors support address mapping/modifiers, speed options, dynamic endian swapping
  • Includes concurrent Ethernet and USB ports
  • Diagnostics: power supply, temperature, and air flow monitors
    Reads back DTACK speed, address/data, and errors for any transaction
    Front panel LEDs and bus signal scope monitors are provided
  • Optional DMA and VME64 support
  • No proprietary VME chips: designed for long-term availability
  • Clean, simple architecture: no jumpers and no setup needed for basic VME I/O
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The V120 is a VME bus master crate controller, usable as a crate slot 0 arbiter or as a secondary controller. Each PCI Express cable driver board, in a PC backplane, can drive one to four V120s over standard, flexible PCI Express cable assemblies up to 7 meters long.

VME module registers are directly mapped into PC address space. The V120 provides 8192 page mapping registers, each controlling a 16 kbyte PC-to-VME translation page with flexible timing and endian controls. The default powerup mapping allows immediate access to the A16, A24, and partial A32 VME address spaces.

Ethernet and USB ports are included. Status LEDs and scope monitors expose bus operation and timing. Bus cycle analysis, power supply, temperature, and air flow monitoring are standard.

FUNCTION VME crate controller
DEVICE TYPE VME master: A32: A24: A16: D08: D16: D32
Optional VME64
OPERATING TEMPERATURE 0 to 60°C; extended MIL/COTS ranges available
POWER Standard VME supplies :
+5 volts, 2 amp max
+12 volts, 50 mA max
-12 volts, 50 mA max
CONNECTORS VME64 P1/P2
Four front-panel SMB test connectors
One type B USB connector
One RJ45 100 MHz ethernet connector
INDICATORS LEDs indicate VME access, CPU activity, error conditions;
additional LED is user programmable
7-segment hex display indicates unit number
PACKAGING 6U single-wide VME module
CONFORMANCE ANSI/VITA 1 VMEbus spec
PCI Express Base Specification 1.1, Gen1
PCI Express External Cabling Specification 1.0

PDF Block Diagram: V120 VME PCI express crate controller

PDF Datasheet: V120 VME PCI express crate controller

PDF Manual: V120 VME PCI express crate controller

V120-1: VME PCI express crate controller

V124-1: VXI PCI express crate controller

J4-2: 2-meter 4x PCI express cable

J4-4: 4-meter 4x PCI express cable

J4-7: 7-meter 4x PCI express cable

J120: PC cable driver board - single 4-lane, for one crate

J121: PC cable driver board - dual 4-lane, for two crates