HD6432142 datasheet(443/1177 Pages) RENESAS

443 / 1177 page

Section 13 Timer Connection

Rev. 4.00 Sep 27, 2006 page 399 of 1130

REJ09B0327-0400

Table 13.7

Examples of TCORB, TCR, and TCSR Settings

Bit(s)

Abbreviation

Contents

Description

7CMIEB

6CMIEA

5OVIE

Interrupts due to compare-match and

overflow are disabled

4 and 3

CCLR1,

CCLR0

TCNT is cleared by the rising edge of the

external reset signal (inverse of the IVI

signal)

TCR in

TMR1

2 to 0

CKS2 to CKS0

101

TCNT is incremented on the rising edge of

the external clock (IHI signal)

TCSR in

TMR1

3 to 0

OS3 to OS0

0011

1001

Not changed by compare-match B; output

inverted by compare-match A (toggle

output)

when TCORB

≤ TCORA, 1 output on

compare-match B, 0 output on compare-

match A

TOCRB in TMR1

H'03

(example)

Compare-match on the 4th (example) rise

of the IHI signal after the rise of the

inverse of the IVI signal

TCNT

TCNT = TCORB (3)

IHI signal

IVI signal (PDC signal)

IVO signal

(without fall modification,

with IHI synchronization)

IVO signal

(with fall modification,

without IHI synchronization)

IVO signal

(with fall modification

and IHI synchronization)

Figure 13.7 Fall Modification/IHI Synchronization Timing Chart

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