H8SSLASH2214 datasheet(467/936 Pages) RENESAS

Il numero della parte	H8S/2214

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

PDF	936 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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Section 10 16-Bit Timer Pulse Unit (TPU)

Rev.4.00 Sep. 18, 2008 Page 407 of 872

REJ09B0189-0400

(1) Example of PWM Mode Setting Procedure

Figure 10.21 shows an example of the PWM mode setting procedure.

Select counter clock

PWM mode

Select counter clearing source

Select waveform output level

[1]

[2]

[3]

Set TGR

[4]

Set PWM mode

[5]

Start count

[6]

[1] Select the counter clock with bits TPSC2 to

TPSC0 in TCR. At the same time, select the

input clock edge with bits CKEG1 and CKEG0 in

TCR.

[2] Use bits CCLR2 to CCLR0 in TCR to select the

TGR to be used as the TCNT clearing source.

[3] Use TIOR to designate the TGR as an output

compare register, and select the initial value and

output value.

[4] Set the cycle in the TGR selected in [2], and set

the duty in the other the TGR.

[5] Select the PWM mode with bits MD3 to MD0 in

TMDR.

[6] Set the CST bit in TSTR to 1 to start the count

operation.

Figure 10.21 Example of PWM Mode Setting Procedure

H8S/2214 Scheda tecnica(PDF) 467 Page - Renesas Technology Corp