H8S-2615 Datasheet, PDF (203/479 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer

2. Phase counting mode 2
Figure 8.26 shows an example of phase counting mode 2 operation, and table 8.33 summarizes
the TCNT up/down-count conditions.
TCLKA (channels 1 and 5)
TCLKC (channels 2 and 4)
TCLKB (channels 1 and 5)
TCLKD (channels 2 and 4)
TCNT value
Up-count
Down-count
Time
Figure 8.26 Example of Phase Counting Mode 2 Operation
Table 8.33 Up/Down-Count Conditions in Phase Counting Mode 2
TCLKA (Channels 1 and 5)
TCLKC (Channels 2 and 4)
High level
Low level
High level
Low level
Legend:
: Rising edge
: Falling edge
TCLKB (Channels 1 and 5)
TCLKD (Channels 2 and 4)
Low level
High level
High level
Low level
Operation
Don’t care
Don’t care
Don’t care
Up-count
Don’t care
Don’t care
Don’t care
Down-count
Rev. 2.00, 05/04, page 169 of 442