h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 265

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

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.
1. Phase counting mode 1
Table 10.32 Up/Down-Count Conditions in Phase Counting Mode 1
Legend:
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
Figure 10.25 shows an example of phase counting mode 1 operation, and table 10.32
summarizes the TCNT up/down-count conditions.
TCNT value
Figure 10.25 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
Section 10 16-Bit Timer Pulse Unit (TPU)
Rev. 3.00 Oct 04, 2005 page 225 of 598
Down-count
Operation
Up-count
Down-count
REJ09B0155-0300
Time