SH7720 Datasheet, PDF (604/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 15 16-Bit Timer Pulse Unit (TPU)
(b) Phase counting mode 2
Figure 15.16 shows an example of phase counting mode 2 operation, and table 15.9 summarizes
the TCNT up/down-count conditions.
TPU_TI2A (Channel 2)
TPU_TI3A (Channel 3)
TPU_TI2B (Channel 2)
TPU_TI3B (Channel 3)
TCNT value
Up-count
Down-count
Time
Figure 15.16 Example of Phase Counting Mode 2 Operation
Table 15.9 Up/Down-Count Conditions in Phase Counting Mode 2
TPU_TI2A (Channel 2)
TPU_TI3A (Channel 3)
High level
Low level
High level
Low level
[Legend]
: Rising edge
: Falling edge
TPU_TI2B (Channel 2)
TPU_TI3B (Channel 3)
Low level
High level
High level
Low level
Operation
Don't care
Up-count
Don't care
Down-count
Rev. 3.00 Jan. 18, 2008 Page 542 of 1458
REJ09B0033-0300