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Renesas R5S72643 User Manual

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Section 11   Multi-Function Timer Pulse Unit 2 
 
Page 530 of 2108 
 
R01UH0134EJ0400  Rev. 4.00 
 
 Sep 
24, 
2014 
SH7262 Group, SH7264 Group
(2)  Examples of Phase Counting Mode Operation 
In phase counting mode, TCNT counts up or down according to the phase difference between two 
external clocks. There are four modes, according to the count conditions. 
(a)  Phase counting mode 1 
Figure 11.30 shows an example of phase counting mode 1 operation, and table 11.46 summarizes 
the TCNT up/down-count conditions. 
TCNT value
Time
TCLKA (channel 1)
TCLKC (channel 2)
TCLKB (channel 1)
TCLKD (channel 2)
Up-count
Down-count
 
Figure 11.30   Example of Phase Counting Mode 1 Operation 
Table 11.46  Up/Down-Count Conditions in Phase Counting Mode 1 
TCLKA (Channel 1) 
TCLKC (Channel 2) 
TCLKB (Channel 1) 
TCLKD (Channel 2) 
 
Operation  
High level 
 
Up-count 
Low level 
 
 
 Low 
level 
 
 High 
level 
 
High level 
 Down-count 
Low level 
 
 
 High 
level 
 
 Low 
level 
 
[Legend] 
: Rising 
edge 
: Falling 
edge