GE VMIVME-6016 VMEbus Intelligent 16 Channel Asynchronous Serial Controller

GE VMIVME-6016 VMEbus Intelligent 16 Channel Asynchronous Serial Controller

Basic Product Information

Product type: VMIVME-6016 is a single slot, 16 channel serial port controller belonging to the VMEbus device.

Core configuration: Equipped with onboard dedicated ring buffer (bidirectional for each channel), and a 25 MHz wait free 68020 microprocessor (also available in 32 MHz version). The VMEbus interface is controlled by the VIC068 VMEbus interface controller and the system controller function can be enabled through jumper wires.

Main function: The 68020 microprocessor handles the input/output and buffering of all character data, minimizing the cost of host driver programs. The user buffer can be configured as a ring buffer or a linear buffer, and can be located in onboard or VMEbus global memory.

Core functions and features

Channel characteristics: 16 channels are available in one VMEbus slot, and the line parameters of each channel are independently controlled by a control block in memory, including baud rate, internal ring buffer size, user buffer size, and address, among other parameters.

Connection and Signal: The front panel has RJ-11 6-pin telecommunications jacks for each channel, with signal levels compatible with RS-232. Each channel supports signal ground and five types of signals: TXD, RXD, RTS, CTS, and DCD.

Programmable features: covering baud rates (50 to 38400 bit/s), on-board and off board buffer sizes for sending and receiving, multiple flow control methods, special characters and related interrupts, send/receive BREAK and duration, error status monitoring, interrupts (priority, level, and vector), VMEbus addresses and modifiers, enabling/disabling VMEbus BERR timers, etc.

Performance parameters

Transmission rate: When using a 25 MHz CPU and the onboard buffer in a ring format, the maximum total transmission rate is 40000 characters per second; A 32 MHz CPU can reach 51000 characters per second in this situation. When using off board buffers (DMA access), the maximum total transfer rate is approximately 15000 bytes/second (depending on the access time of the storage device used), and any effective bit rate combination of 16 channels is valid as long as the rated total throughput does not exceed 30000 characters/second (300000 bits/second) (assuming the user buffer is configured as a ring buffer and located on the board).

VMEbus specifications

Slave: SAD032: SD32: MBLT (A32: A24: A16: AD0: D32: D16: D8 (EO)); MD64), A16 address base address can be selected through jumper, occupying 256 bytes; A32/A24 address base address is programmable, occupying 128, 256, 512, or 1024 Kbyte, allowing only super users or super users and non privileged users to access, interrupt level and vector programmable.

Host: MA32: MBLT32: MBLT (A32: A24: A16: D32: D16: D8 (EO): BLT; MD64）， Bus request level 0, 1, 2 or 3, interrupt level and vector programmable.

Physical and environmental parameters

Temperature: Operating temperature from 0 to 65 ° C, storage temperature from -20 to 85 ° C.

Humidity: 20% to 80% relative humidity, no condensation.

Altitude: The working altitude can reach 10000 feet.

Cooling method: forced air convection.

Size: Dual height Eurocard (6U), 160 x 233.35mm.

Power requirement:+5 VDC, maximum 4.5 A.