Datasheet

Section 12 16-Bit Duty Period Measurement Timer (TDP)

Rev. 2.00 Sep. 28, 2009 Page 336 of 994

REJ09B0452-0200

Bit Bit Name

Initial

Value

R/W Description

5 TWDMNUDF 0 R/(W)* Pulse Width Lower Limit Underflow

This flag indicates that the waveform pulse width measured

in cycle measurement mode is below the lower limit

specified in TDPWDMN.

[Setting condition]

• When TDPICR is less than TDPWDMN

[Clearing condition]

• Reading TWDMNUDF when TWDMNUDF = 1 and then

writing 0 to TWDMNUDF

4 TPDMXOVF 0 R/(W)* Cycle Upper Limit Overflow

This flag indicates that the waveform period measured in

cycle measurement mode has exceeded the upper limit

specified in TDPPDMX.

[Setting condition]

• When TDPICR is greater than TDPPDMX

[Clearing condition]

• Reading TPDMXOVF when TPDMXOVF = 1 and then

writing 0 to TPDMXOVF

3 ICPF 0 R/(W)* Input Capture Generation

In timer mode, this flag indicates that the value in TDPCNT

was transferred to TDPICR when an input capture signal

was generated. This flag is set when the input capture

signal selected by the IEDG bit is generated on the

TDPCYI input pin.

In cycle measurement mode, this flag indicates that the

value in TDPCNT was transferred to TDPICR when the

rising or falling edge of the PWM waveform was detected.

[Setting condition]

• When an input capture signal is generated

[Clearing condition]