7540 datasheet(135/366 Pages) RENESAS

Part #	7540

Description	8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 740 SERIES

PDF	366 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

135 / 366 page

2-59

REJ09B0018-0200Z

Rev.2.00

Jun 21, 2004

7540 Group

APPLICATION

2.4 Timer X

Fig. 2.4.24 Setting method for pulse width measurement mode (2)

Process 5: Set the count value to timer X.

• Set the initial value to prescaler X and timer X

Prescaler X (PREX) (Address 2C16)

Initial value

Timer X (TX) (Address 2D16)

Initial value

Process 6: In order not to execute the no requested interrupt processing, set “0” (no requested)

to the timer X interrupt request bit and CNTR0 interrupt request bit.

Interrupt request register 1 (IREQ1) [Address 3C16]

Process 7: When the interrupt is used, set “1” (interrupt enabled) to the timer X

interrupt enable bit.

No CNTR0 interrupt request is issued

No timer X interrupt request issued

Timer X mode register (TXM) [Address 2B16]

Timer X count start

Process 8: Start counting of timer X.

Interrupt control register 1 (ICON1) [Address 3E16]

CNTR0 interrupt enabled

Timer X interrupt enabled

7540 Datasheet(PDF) 135 Page - Renesas Technology Corp