Figure 10.26 Example Of Phase Counting Mode 1 Operation; Table 10.20 Up/Down-Count Conditions In Phase Counting Mode 1 - Hitachi H8S/2215 Series Hardware Manual

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

Figure 10.26 Example of Phase Counting Mode 1 Operation

Table 10.20 Up/Down-Count Conditions in Phase Counting Mode 1

TCLKA (Channel 1)
TCLKC (Channel 2)
High level
Low level
High level
Low level
Legend:
: Rising edge
: Falling edge
2. Phase counting mode 2
Figure 10.27 shows an example of phase counting mode 2 operation, and table 10.21
summarizes the TCNT up/down-count conditions.
Up-count
TCLKB (Channel 1)
TCLKD (Channel 2)
Low level
High level
High level
Low level
Down-count
Operation
Up-count
Down-count
Rev. 3.0, 10/02, page 307 of 686
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