Renesas M16C/50 Series User Manual page 337

M16C/5L Group, M16C/56 Group
Count source
FFFFh
0000h
TBiS bit in the
TABSR register
TBiIN input
TBi register
IR bit
in the TBiIC register
MR3 bit
in the TBiMR register
i = 0 to 2
The above assumes the following:
•
Bits MR1 to MR0 in the TBiMR register = 10b (measure pulse width).
•
Bits PPWFS12 to PPWFS10 in the PPWFS1 register = 0 (measurement result stored in the TBi register).
•
No initial value is set while timer Bi is stopped.
Figure 16.7 Operation Example in Pulse Width Measurement Mode
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
(Undefined
value)
(Undefined
value)
Count
started
Becomes 0000h
Undefined value
Undefined
value
Set to 0 by accepting an interrupt request, or by a program.
Transfer to the TBi register
(Measured value 1)
(Measured
value 2)
Measured
value 1
Measured value 2
Interrupt request by an effective edge
of the measured pulse
Set to 0 by writing to the TBiMR register.
16. Timer B
Transfer to
the TBi register
(Measured value 3)
Becomes 0000h
Measured
value 3
Interrupt request
by overflow
Page 300 of 803