H838024 datasheet(241/697 Pages) RENESAS

Part #	H838024

Description	Renesas 8-Bit Single-Chip Microcomputer Super Low Power Series

PDF	697 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

241 / 697 page

Section 8 I/O Ports

Rev. 7.00 Mar 10, 2005 page 199 of 652

REJ09B0042-0700

This section only deals with the bits related to timer G and the watchdog timer. For the functions

of the bits, see the descriptions of port 3 (POF1) and port 4 (IRQ0).

Bit 2—Watchdog Timer Source Clock (WDCKS)

This bit selects the watchdog timer source clock. Note that stabilization times for the H8/38024,

H8/38024S, and H8/38024R Group and for the H8/38124 Group are different.

• H8/38024, H8/38024S, H8/38024R Group

Bit 2

WDCKS

Description

Selects

φ/8192

(initial value)

Selects

W/32

• H8/38124 Group

Bit 2

WDCKS

Description

Selects clock based on timer mode register W (TMW) setting*

(initial value)

Selects

W/32

Note: * See section 9.6, Watchdog Timer, for details.

Bit 1—TMIG Noise Canceller Select (NCS)

This bit selects controls the noise cancellation circuit of the input capture input signal (TMIG).

Bit 1

NCS

Description

No noise cancellation circuit

(initial value)

Noise cancellation circuit

H838024 Datasheet(PDF) 241 Page - Renesas Technology Corp