Zte ZXMSG 5200 Technical Manual page 50

ZXMSG 5200 (V2.0) Technical Manual
F 1 5 R S
I G U R E
1. Memory Management
The memory management function manages memory of the whole
system, including encapsulating memories managed by the real-time
operating system, managing memories not managed by the real-time
operating system and providing interfaces for R system memories.
2. Inter-process communications
This part provides communications between processes running on the
same
synchronous inter-process communications, communications with non-
process systems; and interfaces are provided for the inter-CPU
communication system.
3. Process dispatch
This system provides an SDL process concept based on memory
management and inter-process communications; also provides the
upper-level system with a virtual development environment which is
process-oriented and based on message driving.
4. Time limit management
This part provides processes with timer and software clock functions.
The timer consists of relative timing and absolute timing. The timer
can carry parameters or no parameters. The time limit management
can provide non-process systems with timers carrying parameters.
5. Inter-module communication
This
background, and communications between active part and standby
part. Processes on different modules can directly and logically perform
addressing and communications.
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M
Y S T E M O D U L E S
CPU, like asynchronous
part provides communications
inter-process communications,
between foreground and