DSP56303 datasheet(198/292 Pages) FREESCALE

部件名	DSP56303

功能描述	DSP56303 USER?셎 MANUAL

PDF	292 Pages

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制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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198 / 292 page

DSP56303 User’s Manual, Rev. 2

9-6

Freescale Semiconductor

Triple Timer Module

set. If the TCSR[TRM] bit is set, the counter is reloaded with the TLR value at the next timer

clock and the count is resumed. If TCSR[TRM] is cleared, the counter continues to increment on

each timer clock signal. This process repeats until the timer is disabled.

Figure 9-3. Timer Mode (TRM = 1)

Figure 9-4. Timer Mode (TRM = 0)

Mode 0 (internal clock, no timer output): TRM = 1

N = write preload

M = write compare

Clock

(CLK/2 or prescale CLK)

TLR

TCPR

TCF (Compare Interrupt if TCIE = 1)

Counter (TCR)

first event

last event

N + 1

Mode 0 (internal clock, no timer output): TRM = 0

N = write preload

M = write compare

Clock

(CLK/2 or prescale CLK)

TLR

TCPR

TCF (Compare Interrupt if TCIE = 1)

Counter (TCR)

first event

last event

N + 1

M + 1

TOF (Overflow Interrupt if TCIE = 1)

DSP56303 数据表(PDF) 198 Page - Freescale Semiconductor, Inc

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