參數(shù)資料
型號: RX78K4
英文描述: 78K/IV Series Real-Time OS Fundamental | User's Manual[01/1997]
中文描述: 78K/IV系列實時操作系統(tǒng)的基本|用戶手冊[01/1997]
文件頁數(shù): 77/96頁
文件大?。?/td> 265K
代理商: RX78K4
CHAPTER 5 RX78K/IV RESET OPERATION
68
5.1
Hardware Used
With RX78K/IV, hardware such as the timer/counter unit used for “wai_tsk”, “act_cyc(iact_cyc)” is used (refer to
Table 5-1
).
Since RX78K/IV does not initialize the timer/counter unit, initialize the unit within the user initialization routine.
When “wai_tsk”, “act_cyc(iact_cyc)” is not used, the following timer/counter unit is not used.
Table 5-1 Timer of Each CPU
CPU
Timer
Compare Register
Interrupt Vector
m
PD784021, 784025
m
PD784026, 78P4026
TM3
(16 bits/timer 3)
CR30
INTC30
To use a timer other than TM3, set the start address (“tmdsp”) of the timer dispatcher to the vector table address
of the timer used (refer to
Fig. 5-1
).
When setting 3 for the interrupt level of the timer processing to permit multiple interrupt with the interrupt handler,
this OS cannot warrant proper operations. Therefore, ensure either to set a value other than 3 for the interrupt level
of the timer processing or inhibit multiple interrupt if interrupt level 3 is to be set.
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