SH7713 datasheet(541/904 Pages) RENESAS

Part #	SH7713

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	904 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 14 Timer Unit (TMU)

Rev.1.50 Aug. 30, 2006 Page 501 of 860

REJ09B0288-0150

Select operation

Select counter

clock

Set underflow

interrupt generation

Set timer constant

Initialize timer

counter

Start counting

(1)

(2)

(3)

(4)

(5)

Note: When an interrupt has been generated, clear the flag in the interrupt handler that caused it.

If interrupts are enabled without clearing the flag, another interrupt will be generated.

(1) Select the counter clock

with the TPSC2 to TPSC0

bits in TCR.

(2) Use the UNIE bit in TCR

to set whether to

generate an interrupt

when TCNT underflows.

(3) Set a value in TCOR (the

cycle is the set value plus

1).

(4) Set the initial value in

TCNT.

(5) Set the STR bit in TSTR

to 1 to start operation.

Figure 14.2 Setting Count Operation

Auto-Reload Count Operation: Figure 14.3 shows the TCNT auto-reload operation.

TCNT value

TCOR

H'00000000

STR0–STR2

UNF

TCOR value set to

TCNT during underflow

Time

Figure 14.3 Auto-Reload Count Operation

SH7713 Datasheet(PDF) 541 Page - Renesas Technology Corp

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