Based on the MVB controller PicoBlaze

The present invention discloses a method based on PicoBlaze MVB controller, the field of communications railcars. PMVB present invention comprises a controller, a communication memory, the ARM adapter bus arbiter; wherein, pMVB controller, a communication memory, the ARM adapter, the bus arbiter is connected to the external bus BUS1; pMVB communicate with the memory controller via a data cable, are respectively connected to the external adapter ARM ARM processor, the bus arbiter; control information memory for storing a communication network and the communication data input, and send it to the controller pMVB; pMVB controller responsive to control information, and communication data is after the encoded data transmitted via the external bus BUS1 to the MVB bus; pMVB simultaneously decoding the received data bus and an interrupt trigger; bus arbiter responsible for bus arbitration in accordance with instructions sent from the controller pMVB.