SH7720 Datasheet, PDF (605/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 15 16-Bit Timer Pulse Unit (TPU)
(c) Phase counting mode 3
Figure 15.17 shows an example of phase counting mode 3 operation, and table 15.10 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 15.17 Example of Phase Counting Mode 3 Operation
Table 15.10 Up/Down-Count Conditions in Phase Counting Mode 3
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
Down-count
Don't care
Rev. 3.00 Jan. 18, 2008 Page 543 of 1458
REJ09B0033-0300