H838532H datasheet(374/508 Pages) RENESAS

Part #	H838532H

Description	16-Bit Single-Chip Microcomputer H8 Family / H8/300H Super Low Power Series

PDF	508 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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374 / 508 page

Section 12 A/D Converter

Rev. 1.00 May 30, 2008 Page 354 of 484

REJ09B0436-0100

Bits 3 to 0: Channel select (CH3 to CH0)

Bits 3 to 0 select the analog input channel.

The channel selection should be made while bit ADSF is cleared to 0.

Bit 3

CH3

Bit 2

CH2

Bit 1

CH1

Bit 0

CH0

Analog Input Channel

No channel selected

(initial value)

AN0

AN1

AN2

AN3

AN4

AN5

AN6

AN7

Setting prohibited

Note:

Don’t care

12.2.3

A/D Start Register (ADSR)

Bit

Initial value

Read/Write

ADSF

R/W

—

The A/D start register (ADSR) is an 8-bit read/write register for starting and stopping A/D

conversion.

A/D conversion is started by writing 1 to the A/D start flag (ADSF) or by input of the designated

edge of the external trigger signal, which also sets ADSF to 1. When conversion is complete, the

converted data is set in ADRRH and ADRRL, and at the same time ADSF is cleared to 0.

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