HD64F2149YV datasheet(684/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

Descrição Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

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Section 19 D/A Converter

Rev. 3.00 Jan 18, 2006 page 656 of 1044

REJ09B0280-0300

19.2

19.2.1

D/A Data Registers 0 and 1 (DADR0, DADR1)

Bit

Initial value

Read/Write

R/W

D/A data registers 0 and 1 (DADR0 and DADR1) are 8-bit readable/writable registers that store

data to be converted. When analog output is enabled, the value in the D/A data register is

converted and output continuously at the analog output pin.

The D/A data registers are initialized to H'00 by a reset and in hardware standby mode.

19.2.2

D/A Control Register (DACR)

Bit

Initial value

Read/Write

DAOE1

R/W

DAOE0

R/W

DAE

R/W

—

DACR is an 8-bit readable/writable register that controls the operation of the D/A converter

module.

DACR is initialized to H'1F by a reset and in hardware standby mode.

Bit 7—D/A Output Enable 1 (DAOE1): Controls D/A conversion and analog output.

Bit 7

DAOE1

Description

Analog output DA1 is disabled

(Initial value)

D/A conversion is enabled on channel 1. Analog output DA1 is enabled

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