HD6417750RF240V Datasheet, PDF (253/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 10 16-Bit Timer Pulse Unit (TPU)
Example of Phase Counting Mode Setting Procedure: Figure 10.24 shows an example of the
phase counting mode setting procedure.
Phase counting mode
[1] Select phase counting mode with bits MD3 to
MD0 in TMDR.
[2] Set the CST bit in TSTR to 1 to start the count
operation.
Select phase counting mode [1]
Start count
[2]
<Phase counting mode>
Figure 10.24 Example of Phase Counting Mode Setting Procedure
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
Figure 10.25 shows an example of phase counting mode 1 operation, and table 10.32
summarizes the TCNT up/down-count conditions.
TCLKA (channels 1 and 5)
TCLKC (channels 2 and 4)
TCLKB (channels 1 and 5)
TCLKD (channels 2 and 4)
TCNT value
Up-count
Down-count
Time
Figure 10.25 Example of Phase Counting Mode 1 Operation
Rev. 7.00 Sep. 11, 2009 Page 217 of 566
REJ09B0211-0700