Справочник Пользователя для Renesas R5S72643
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.
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.
the TCNT up/down-count conditions.
TCNT value
Time
TCLKA (channel 1)
TCLKC (channel 2)
TCLKC (channel 2)
TCLKB (channel 1)
TCLKD (channel 2)
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)
TCLKC (Channel 2)
TCLKB (Channel 1)
TCLKD (Channel 2)
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