message buffer

message buffer

[′mes·ij ‚bəf·ər]
(computer science)
One of a number of sections of computer memory, which contains a message that can be transmitted between tasks in the computer system to request service and receive replies from tasks, and which is stored in a system buffer area, outside the address spaces of tasks.
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mini send(caller, destination, ms): If the destination process is blocked waiting for that message from the caller, the message is copied from the caller's message buffer pointed by msg to the destination's message buffer, otherwise the caller process is blocked.
For a process-based implementation, since the user-allocated message buffer is not accessible to other processes, an intermediate copy from the user-allocated buffer to the shared system buffer is still necessary.
Complete with internal enhanced CEC (consumer electronic control) with expanded message buffer, 5-V tolerant I/Os and on-chip IUC master, the highly integrated, energy-saving transmitters provide designers with system-ready solutions that lower development and manufacturing costs across a wide range of HDMI-enabled devices.
R32C/118 MCUs include a CAN(a)1 module that supports a 32-slot message buffer for the robust networking standards widely used in factory automation equipment.
MFR4200 features -- Bit rate up to a maximum of 10 Mbit/sec on each of two channels -- Two channels -- Redundant for fault tolerance -- Independent for 2x bandwidth -- 59 message buffers, each with a payload of up to 32 bytes of data -- Each message buffer configurable as receive buffer, transmit buffer (single or double) or as part of the receive first in-first out (FIFO) -- 64-pin low-profile quad flat package (LQFP)
Specifically designed for embedded client devices, Extended Systems' SyncML SDK also features small code size (less than 40k ROM) optimized for memory limited devices and includes support for large objects, allowing developers to use a smaller message buffer resulting in saved RAM space on the device.
Presented annually to the industry's two most outstanding electronics designs, the Design Achievement Award acknowledges Siemens' redesign of the Message Buffer D (MBD) for the EWSD switch boosting throughput by a factor of ten, while utilizing just one eighth the surface area of the previous design.
The award was presented to Siemens AG in recognition for its innovative Message Buffer Device (MBD) project for Siemens' Information and Communication Networks' EWSD(R) PowerNode(R) switching system.
These include: o Internal arbitration - programmable transmit-first scheme o Time stamp based on a 16-bit free-running timer o Global network time o Flexible interrupt scheme with one maskable interrupt associated with each message buffer o Low power "Sleep" mode with programmable "Wake-Up" on bus activity
Then, programmers who work with an Ethernet port need only deal with transmit and receive message buffers and an interrupt service routine (ISR).
1 protocol implementation with selectable single or dual channel support; 128 message buffers in this implementation, each with a payload up to 254 bytes of data, and two configurable receive first-in first-out (FIFO) message buffers.
1 protocol implementation with selectable single or dual channel support -- 128 message buffers, each with a payload up to 254 bytes of data -- Two configurable receive first-in first-out (FIFO) message buffers -- Controller host interface (CHI) clock up to 80MHz -- Message filtering based on frame identification, cycle counter and channel for transit and receive buffers -- 64-pin LQFP