SH7014 datasheet(437/754 Pages) RENESAS

437 / 754 page

14. Mid-Speed A/D Converter

⎯ SH7016, SH7017 ⎯

Rev.5.00 Sep. 27, 2007 Page 403 of 716

REJ09B0398-0500

Bit 5

⎯A/D Start (ADST): Selects start/end of A/D conversion. A 1 is maintained during A/D

conversion start. It is also possible to set a 1 by the MTU trigger input.

Bit 5

ADST

Description

A/D conversion halted

(Initial value)

1. Single mode: Starts A/D conversion. Automatically clears to 0 when conversion of

the designated channel is complete

2. Scan mode: Starts A/D conversion. Continuous conversion until cleared to 0 by the

software

Bit 4

⎯Scan Mode (SCAN): Selects the A/D conversion mode from single mode and scan mode.

For operations during single/scan mode, see section 14.4, Operation. When switching modes,

proceed while ADST = 0.

Bit 4

SCAN

Description

Single mode

(Initial value)

Scan mode

Bit 3

⎯Clock Select (CKS): Sets the A/D conversion time. Proceed conversion time switch while

ADST = 0. Always set CKS = 0 when operating frequency exceeds 20MHz.

Bit 3

CKS

Description

Conversion time = 266 states (max)

(Initial value)

Conversion time = 134 states (max)

Bits 2 to 0

⎯Channel select 2 to 0 (CH2 to CH0): Selects the analog input channel along with

the SCAN bit. Switch channels while ADST = 0.

SH7014 Datasheet(PDF) 437 Page - Renesas Technology Corp