HD6432138SW datasheet(407/1061 Pages) RENESAS

407 / 1061 page

Section 13 Timer Connection [H8S/2138 Group]

Rev. 4.00 Jun 06, 2006 page 353 of 1004

REJ09B0301-0400

Bit 3—VFBACKI Edge (VFEDG): Detects a rising edge on the VFBACKI pin.

Bit 3

VFEDG

Description

[Clearing condition]

(Initial value)

When 0 is written in VFEDG after reading VFEDG = 1

[Setting condition]

When a rising edge is detected on the VFBACKI pin

Bit 2—Pre-Equalization Flag (PREQF): Detects the occurrence of an IHI signal 2fH

modification condition. The generation of a falling/rising edge in the IHI signal during a mask

interval is expressed as the occurrence of a 2fH modification condition. For details, see section

13.3.4, IHI Signal and 2fH Modification.

Bit 2

PREQF

Description

[Clearing condition]

(Initial value)

When 0 is written in PREQF after reading PREQF = 1

[Setting condition]

When an IHI signal 2fH modification condition is detected

Bit 1—IHI Signal Level (IHI): Indicates the current level of the IHI signal. Signal source and

phase inversion selection for the IHI signal depends on the contents of TCONRI. Read this bit to

determine whether the input signal is positive or negative, then maintain the IHI signal at positive

phase by modifying TCONRI.

Bit 1

IHI

Description

The IHI signal is low

The IHI signal is high

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