USBB17RX78K4-XXX NEC Electronics, USBB17RX78K4-XXX Datasheet - Page 77

• Manufacturer Part Number: USBB17RX78K4-XXX
• Description: 78K/4 series realtime OS
• Manufacturer: NEC Electronics

5.1 Hardware Used
Table 5-1).
of the timer used (refer to Fig. 5-1).
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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With RX78K/IV, hardware such as the timer/counter unit used for “wai_tsk”, “act_cyc(iact_cyc)” is used (refer to
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.
To use a timer other than TM3, set the start address (“?tmdsp”) of the timer dispatcher to the vector table address
When setting 3 for the interrupt level of the timer processing to permit multiple interrupt with the interrupt handler,
m
m
PD784021, 784025
PD784026, 78P4026
CPU
CHAPTER 5
(16 bits/timer 3)
Table 5-1 Timer of Each CPU
Timer
TM3
RX78K/IV RESET OPERATION
Compare Register
CR30
Interrupt Vector
INTC30