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R8C2K 数据表(PDF) 111 Page - Renesas Technology Corp

部件名 R8C2K
功能描述  RENESAS MCU R8C FAMILY / R8C/2x SERIES
PDF  471 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

R8C2K 数据表(HTML) 111 Page - Renesas Technology Corp

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R8C/2K Group, R8C/2L Group
10. Clock Generation Circuit
Rev.1.10
Dec 21, 2007
Page 94 of 450
REJ09B0406-0110
Figure 10.15
Example of Determining Interrupt Source for Oscillation Stop Detection, Watchdog
Timer, Voltage Monitor 1, or Voltage Monitor 2 Interrupt
Interrupt sources judgment
OCD3 = 1 ?
(XIN clock stopped)
OCD1 = 1
(oscillation stop detection
interrupt enabled) and OCD2 = 1
(on-chip oscillator clock selected
as system clock) ?
VW2C3 = 1 ?
(Watchdog timer
underflow)
VW2C2 = 1 ?
(passing Vdet2)
To oscillation stop detection
interrupt routine
To voltage monitor 1
interrupt routine
To voltage monitor 2
interrupt routine
To watchdog timer
interrupt routine
NO
YES
NO
YES
NO
YES
NO
YES
NOTE:
1. This disables multiple oscillation stop detection interrupts.
OCD1 to OCD3: Bits in OCD register
VW2C2, VW2C3: Bits in VW2C register
Set OCD1 bit to 0 (oscillation stop
detection interrupt disabled).(1)



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