H8SSLASH2224 datasheet(503/1071 Pages) RENESAS

Il numero della parte	H8S/2224

Spiegazioni elettronici	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	1071 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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Section 11 16-Bit Timer Pulse Unit (TPU)

Rev. 5.00 Aug 08, 2006 page 417 of 982

REJ09B0054-0500

Example of Phase Counting Mode Setting Procedure: Figure 11.25 shows an example of the

phase counting mode setting procedure.

Phase counting mode

Select phase counting mode

Start count

Select phase counting mode with bits MD3 to

MD0 in TMDR.

Set the CST bit in TSTR to 1 to start the count

operation.

[1]

[2]

[1]

[2]

Figure 11.25 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 11.26 shows an example of phase counting mode 1 operation, and table 11.32

summarizes the TCNT up/down-count conditions.

TCNT value

Time

Down-count

Up-count

TCLKA (channels 1 and 5*)

TCLKC (channels 2 and 4*)

TCLKB (channels 1 and 5*)

TCLKD (channels 2 and 4*)

Note: * Not available in the H8S/2227 Group.

Figure 11.26 Example of Phase Counting Mode 1 Operation

H8S/2224 Scheda tecnica(PDF) 503 Page - Renesas Technology Corp