R01UH0823EJ0100 Rev.1.00
Page 704 of 1823
Jul 31, 2019
RX23W Group
25. 16-Bit Timer Pulse Unit (TPUa)
(c) Phase counting mode 3
shows an example of phase counting mode 3 operation, and
lists the TPUm.TCNT up-/
down-count conditions.
Figure 25.27
Example of Phase Counting Mode 3 Operation
: Rising edge
: Falling edge
Table 25.26
Up-/Down-Count Conditions in Phase Counting Mode 3
TCLKA (TPU1, TPU5)
TCLKC (TPU2, TPU4)
TCLKB (TPU1, TPU5)
TCLKD (TPU2, TPU4)
Operation
High
Don’t care
Low
Don’t care
Low
Don’t care
High
Up-count
High
Down-count
Low
Don’t care
High
Don’t care
Low
Don’t care
TCLKA (TPU1, TPU5)
TCLKC (TPU2, TPU4)
TCLKB (TPU1, TPU5)
TCLKD (TPU2, TPU4)
TCNT value
Time
Down-count
Up-count