SH7046 Datasheet, PDF (241/611 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7046 Series

Section 10 Multi-Function Timer Pulse Unit (MTU)
Examples of Phase Counting Mode Operation: In phase counting mode, TCNT counts up or
down according to the phase difference between two external clocks. There are four modes,
according to the count conditions.
• Phase counting mode 1
Figure 10.25 shows an example of phase counting mode 1 operation, and table 10.33
summarizes the TCNT up/down-count conditions.
TCLKA (channel 1)
TCLKC (channel 2)
TCLKB (channel 1)
TCLKD (channel 2)
TCNT value
Up-count
Down-count
Time
Figure 10.25 Example of Phase Counting Mode 1 Operation
Table 10.33 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
TCLKB (Channel 1)
TCLKD (Channel 2)
Low level
High level
High level
Low level
Operation
Up-count
Down-count
Rev. 4.00 Dec 05, 2005 page 197 of 564
REJ09B0270-0400