ADLINK USB-3488A - Manual (Page 39)

Operation Theory 31
3.2.2 ADLINK USB-3488A GPIB Interface Block Diagram
The ADLINK USB-3488A GPIB interface include a 32 KB FIFO to
maximize data transfer rates.
Its state-of-the-art state machine in the the 8051 coordinates the
data flow between the USB Bus, FIFO and GPIB bus.
Figure 3-3: Block Diagram of ADLINK USB-3488A GPIB Interface
FPGA
GPIB IP
(Built-in 2 KB FIFO)
PCI
Controller
Bus
Transceiver/
Receiver
CPLD
SRAM
8051