M32CSLASH8A datasheet(193/372 Pages) RENESAS

部件名	M32C/8A

功能描述	RENESAS MCU M16C FAMILY / M32C/80 Series

PDF	372 Pages

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制造商	RENESAS [Renesas Technology Corp]

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M32C/8A Group

15. Timers (Timer B)

Rev.1.00

Jul 15, 2007

Page 176 of 352

REJ09B0385-0100

Figure 15.29

Operation in Pulse Period Measurement Mode (Timer B)

FFFFh

TBiS bit in the TABSR register

or TBSR register

Contents of the counter

(n = contents of the

reload register)

0000h

IR bit in the TBiIC

Pulse input

to TBiIN pin(2)

i = 0 to 5

NOTES:

1. Counter is reset due to the completion of the measurement.

2. If an overflow and a valid edge input occur simultaneously, an interrupt request is generated only once,

which results in the valid edge not being recognized. Do not let an overflow occur.

“L”

“H”

Set to 0 by an interrupt request acknowledgement or by program

1st valid edge

2nd valid edge

(note 1)

Transfer timing from counter

to reload register

TBi register

Transfer (undefined value)

Transfer (measured value n)

Undefined value

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