Renesas M16C/64A Series User Manual page 354

M16C/64A Group
Count source
0000h
TBiS bit in the
TABSR register or
TBSR register
TBiIN input
TBi register
IR bit
in TBiIC register
i = 0 to 5
The above assumes the following:
•
Bits MR1 to MR0 in the TBiMR register = 00b (measurement between a falling edge and the next falling
edge of measured pulse).
•
Bits PPWFS12 to PPWFS10 and PPWFS22 to PPWFS20 in the PPWFS1 and PPWFS2 registers = 0
(measurement result stored in the TBi register).
•
No initial value is set while timer Bi is stopped.
Figure 18.6 Operation Example in Pulse Period Measurement Mode
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
(Undefined
value)
Transfer to the TBi register
(Measured value 1)
(Undefined
value)
Count
start
Becomes 0000h
Undefined value
Undefined value
(Measured
value 2)
Measured
value 1
Measured value 2
Interrupt request by an active edge of
the measured pulse
Set to 0 by accepting an interrupt request, or by a program.
18. Timer B
Transfer to
the TBi register
(Measured value 3)
Transfer to
the TBi register
(Measured value 4)
Becomes 0000h
Measured Measured
value 3 value 4
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