H8SX1663 datasheet(678/1158 Pages) RENESAS

Part #	H8SX1663

Description	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1158 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 12 8-Bit Timers (TMR)

Rev.1.00 Jun. 07, 2006 Page 626 of 1102

REJ09B0294-0100

12.5.2

Timing of CMFA and CMFB Setting at Compare Match

The CMFA and CMFB flags in TCSR are set to 1 by a compare match signal generated when the

TCOR and TCNT values match. The compare match signal is generated at the last state in which

the match is true, just before the timer counter is updated. Therefore, when the TCOR and TCNT

values match, the compare match signal is not generated until the next TCNT clock input. Figure

12.9 shows this timing.

TCNT

N + 1

TCOR

Compare match

signal

CMF

Figure 12.9 Timing of CMF Setting at Compare Match

12.5.3

Timing of Timer Output at Compare Match

When a compare match signal is generated, the timer output changes as specified by the bits OS3

to OS0 in TCSR. Figure 12.10 shows the timing when the timer output is toggled by the compare

match A signal.

Compare match A

signal

Timer output pin

Figure 12.10 Timing of Toggled Timer Output at Compare Match A

H8SX1663 Datasheet(PDF) 678 Page - Renesas Technology Corp