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R8C20 Datasheet(PDF) 93 Page - Renesas Technology Corp

Part # R8C20
Description  RENESAS MCU R8C FAMILY / R8C/2x SERIES
PDF  501 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R8C20 Datasheet(HTML) 93 Page - Renesas Technology Corp

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R8C/20 Group, R8C/21 Group
10. Clock Generation Circuit
Rev.2.00 Aug 27, 2008
Page 77 of 458
REJ09B0250-0200
Figure 10.9
Time from Wait Mode to Interrupt Routine Execution
FMR0 Register
FMSTP Bit
Time until Flash Memory is
Activated (T1)
Time until CPU Clock is
Supplied (T2)
Time for Interrupt
Sequence (T3)
Remarks
0
(flash memory
operates)
Period of system clock
× 12 cycles + 30 µs (max.)
Period of CPU clock
× 6 cycles
Period of CPU clock
× 20 cycles
Following total
time is the time
from wait mode
until an interrupt
routine is
executed.
1
(flash memory
stops)
Period of system clock
× 12 cycles
Same as above
Same as above
Wait mode
Flash memory activation
sequence
CPU clock restart
sequence
Interrupt sequence
T1
T2
T3
Interrupt request generated



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