
SH7145 Group
SCI Break Detection
REJ06B0384-0100Z/Rev.1.00 September 2004 Page 14 of 20
5.5 CMT0 Interrupt Routine
cmt_int ()
return
Stop counting by CMT_0.
Count the number of interrupts.
Clear the CMF flag in CMCSR_0 to 0.
Count the number of times
low level is detected on the RxD pin.
Third interrupt?
No
Yes
Low level on the RxD pin?
No
Yes
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