H8SLASH3028F datasheet(371/923 Pages) RENESAS

部件名	H8/3028F

功能描述	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	923 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

371 / 923 page

Rev. 2.00, 09/03, page 341 of 890

Counter setup

Select counter clock

Count operation

Periodic counting

Select counter clear source

Select output compare

Set period

Start counter

Free-running counting

Start counter

Periodic counter

Free-running counter

Yes

Figure 9.12 Counter Setup Procedure (Example)

1. Set bits TPSC2 to TPSC0 in 16TCR to select the counter clock source. If an external clock

source is selected, set bits CKEG1 and CKEG0 in 16TCR to select the desired edge(s) of the

external clock signal.

2. For periodic counting, set CCLR1 and CCLR0 in 16TCR to have 16TCNT cleared at GRA

compare match or GRB compare match.

3. Set TIOR to select the output compare function of GRA or GRB, whichever was selected in

step 2.

4. Write the count period in GRA or GRB, whichever was selected in step 2.

5. Set the STR bit to 1 in TSTR to start the timer counter.

H8/3028F 数据表(PDF) 371 Page - Renesas Technology Corp