Figure 10.27 Example Of Phase Counting Mode 2 Operation; Table 10.21 Up/Down-Count Conditions In Phase Counting Mode 2 - Hitachi H8S/2215 Series Hardware Manual

TCLKA (channel 1)
TCLKC (channel 2)
TCLKB (channel 1)
TCLKD (channel 2)
TCNT value

Figure 10.27 Example of Phase Counting Mode 2 Operation

Table 10.21 Up/Down-Count Conditions in Phase Counting Mode 2

TCLKA (Channel 1)
TCLKC (Channel 2)
High level
Low level
High level
Low level
Legend:
: Rising edge
: Falling edge
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.
Rev. 3.0, 10/02, page 308 of 686
Up-count
TCLKB (Channel 1)
TCLKD (Channel 2)
Low level
High level
High level
Low level
Down-count
Operation
Don't care
Don't care
Don't care
Up-count
Don't care
Don't care
Don't care
Down-count
Time