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Renesas SH7641 User Manual

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Section 21 A/D Converter

Rev. 4.00 Sep. 14, 2005 Page 802 of 982

REJ09B0023-0400

Bit Bit

Name

Initial
Value R/W Description

14

ADIE

0

R/W

A/D Interrupt Enable

Enables or disables the interrupt (ADI) requested at the
end of A/D conversion. Set the ADIE bit while A/D
conversion is not being made.

0: A/D end interrupt request (ADI) is disabled

1: A/D end interrupt request (ADI) is enabled

13 ADST 0 R/W

A/D

Start

Starts or stops A/D conversion. The ADST bit remains
set to 1 during A/D conversion.

0: A/D conversion is stopped

1: A/D conversion is started

Single mode: A/D conversion starts; ADST is

automatically cleared to 0 when conversion ends on
all selected channels

Multi mode: A/D conversion starts; when conversion is

completed cycling through the selected channels,
ADST is automatically cleared

Scan mode: A/D conversion starts and continues, A/D

conversion is continuously performed until ADST is
cleared to 0 by software, by a power-on reset, or by a
transition to standby mode

12 DMASL

0 R/W

DMAC

Select

Selects an interrupt due to the end of A/D conversion or
activation of the DMAC. Set the DMASL bit while A/D
conversion is not being made.

0: An interrupt by the end of A/D conversion is selected

1: Activation of the DMAC by the end of A/D conversion

is selected

11

TRGE

0

R/W

A/D Trigger Enable

This bit enables or disables starting of A/D conversion by
MTU or CSL trigger.

0: Start of A/D conversion by MTU or CSL trigger input is

disabled

1: A/D conversion is started MTU or CSL trigger input

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