Datasheet

Section 11 16-Bit Timer Pulse Unit (TPU)
Rev. 6.00 Mar. 18, 2010 Page 421 of 982
REJ09B0054-0600
4. Phase counting mode 4
Figure 11.29 shows an example of phase counting mode 4 operation, and table 11.35
summarizes the TCNT up/down-count conditions.
Time
Up-count
Down-count
TCNT value
TCLKA (channels 1 and 5
*
)
TCLKC (channels 2 and 4
*
)
TCLKB (channels 1 and 5
*
)
TCLKD (channels 2 and 4
*
)
Note: * Not available in the H8S/2227 Group.
Figure 11.29 Example of Phase Counting Mode 4 Operation
Table 11.35 Up/Down-Count Conditions in Phase Counting Mode 4
TCLKA (Channels 1 and 5
*
)
TCLKC (Channels 2 and 4
*
)
TCLKB (Channels 1 and 5
*
)
TCLKD (Channels 2 and 4
*
) Operation
High level
Up-count
Low level
Low level Don’t care
High level
High level
Down-count
Low level
High level Don’t care
Low level
Legend:
: Rising edge
: Falling edge
Note: * Not available in the H8S/2227 Group.