Datasheet

Section 11 16-Bit Timer Pulse Unit (TPU)
Rev. 6.00 Mar. 18, 2010 Page 419 of 982
REJ09B0054-0600
2. Phase counting mode 2
Figure 11.27 shows an example of phase counting mode 2 operation, and table 11.33
summarizes the TCNT up/down-count conditions.
Time
Down-countUp-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 11.27 Example of Phase Counting Mode 2 Operation
Table 11.33 Up/Down-Count Conditions in Phase Counting Mode 2
TCLKA (Channels 1 and 5
*
)
TCLKC (Channels 2 and 4
*
)
TCLKB (Channels 1 and 5
*
)
TCLKD (Channels 2 and 4
*
) Operation
High level
Don’t care
Low level
Low level
High level Up-count
High level
Don’t care
Low level
High level
Low level Down-count
Legend:
: Rising edge
: Falling edge
Note: * Not available in the H8S/2227 Group.