Renesas RL78/G13 - Interval Timer Interrupt

RL78/G13 Safety Function (Frequency Detection)
5.8.28 Interval Timer Interrupt
Figure 5.31 shows the flowchart for an interval timer interrupt.
r_it_Interrupt()
return
Ye s
No
Switch
depressed?
Set count clock change request flag
g_fCLKChangeFlag

1
Clear external interrupt request flag
PIF0 bit

0
Stop interval timer
ITMK bit

1
ITIF bit  0
RINTE bit  0
Set external interrupt occurrence
flag
g_intit_flag

1
Ye s
Interval timer
counter stopped?
No
Figure 5.31 Interval Timer Interrupt
R01AN0956EJ0100 Rev. 1.00 Page 59 of 70
Feb. 27, 2012