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Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 585 of 982
REJ09B0023-0400
Table 18.35 Up/Down-Count Conditions in Phase Counting Mode 3
TCLKA (Channel 1)
TCLKC (Channel 2)
TCLKB (Channel 1)
TCLKD (Channel 2)
Operation
High level
Don't care
Low level
Don't care
Low level Don't care
High level Up-count
High level
Down-count
Low level
Don't care
High level Don't care
Low level Don't care
[Legend]
: Rising edge
: Falling edge
• Phase counting mode 4
Figure 18.28 shows an example of phase counting mode 4 operation, and table 18.36
summarizes the TCNT up/down-count conditions.
Time
Up-count
Down-count
TCNT value
TCLKA (channel 1)
TCLKC (channel 2)
TCLKB (channel 1)
TCLKD (channel 2)
Figure 18.28 Example of Phase Counting Mode 4 Operation