The memory subsystem is connected via the FPGA to the PXI bus and supports fast download or upload of vectors between the host computer and the GX5290/GX5290e.

Memory Management Block Diagram
The Clock/Strobe signals and the Vector Program Control hardware control the program counter that contains the address of the current I/O memory. After resetting, the program counter points to address zero which is then incremented by the Clock/Strobe signal as the program is sequenced by the Vector Program Control hardware.