H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 510

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 10 16-Bit Timer Pulse Unit (TPU)
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 10.29 shows an example of phase counting mode 1 operation,
and table 10.9 summarizes the TCNT up/down-count conditions.
Table 10.9 Up/Down-Count Conditions in Phase Counting Mode 1
Legend:
Rev. 3.00 Sep 15, 2006 page 476 of 988
REJ09B0330-0300
TCLKA (Channels 1 and 5)
TCLKC (Channels 2 and 4)
High level
Low level
High level
Low level
TCLKA (channels 1 and 5)
TCLKC (channels 2 and 4)
TCLKB (channels 1 and 5)
TCLKD (channels 2 and 4)
: Rising edge
: Falling edge
TCNT value
Figure 10.29 Example of Phase Counting Mode 1 Operation
Up-count
TCLKB (Channels 1 and 5)
TCLKD (Channels 2 and 4)
Low level
High level
High level
Low level
Down-count
Operation
Up-count
Down-count
Time