Datasheet

Table Of Contents
Section 10 16-Bit Timer Pulse Unit (TPU)
REJ09B0140-0900 Rev. 9.00 Page 331 of 846
Sep 16, 2010
H8S/2215 Group
3. Phase counting mode 3
Figure 10.28 shows an example of phase counting mode 3 operation, and table 10.22
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 10.28 Example of Phase Counting Mode 3 Operation
Table 10.22 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
Low level
High level Up-count
High level Down-count
Low level Don’t care
High level
Low level
Legend:
: Rising edge
: Falling edge