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| 型號(hào)： | RX78K4 |
| 英文描述： | 78K/IV Series Real-Time OS Fundamental | User＇s Manual[01/1997] |
| 中文描述： | 78K/IV系列實(shí)時(shí)操作系統(tǒng)的基本|用戶手冊(cè)[01/1997] |
| 文件頁(yè)數(shù)： | 16/96頁(yè) |
| 文件大?。?/td> | 265K |
| 代理商： | RX78K4 |
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7
CHAPTER 2 BASIC FUNCTIONS OF RX78K/IV
Because RX78K/IV is a multi-task OS, it can process two or more tasks concurrently.
78K/IV series microcomputer has 8 register banks. With RX78K/IV, bank 0 of these register banks is used by the
OS. Tanks can be allocated to registers for high-speed task switching. (For details, refer to
3.1 RX78K/IV
Configuration)
There are 16 levels of task priorities (0 to 15), with the lowest number assigned the highest priority level.
However, priority 0 and priority 1 are reserved for OS. Therefore, priorities to which user tasks can be allocated are
limited to the 14 levels of 2 to 15.
This chapter describes the following items of the basic functions:
(1) Task state
(2) Task manipulation
(3) Synchronization and communication
(4) Interrupt processing
(5) Memory management
(6) Time management
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