32186 datasheet(540/1032 Pages) RENESAS

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A/D CONVERTER

11-42

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

11.3 Functional Description of A/D Converter

(5) Total A/D conversion time

A total A/D conversion time in various modes are shown in the table below.

Table 11.3.6 A/D Conversion Time (Total Time)

Unit: BCLK

Conversion start method Conversion speed

Conversion mode (Note 1)

Conversion time

When fast sample-

and-hold enabled

Software and

2BCLK

Slow

Normal

Single mode

598

382

hardware triggers

mode

speed

Single-shot scan,

(596

× n)+2

(380

× n)+2

(Note 2)

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

1194

762

Double

Single mode

346

202

speed

Single-shot scan,

(344

× n)+2

(200

× n)+2

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

690

402

Fast

Normal

Single mode

262

190

mode

speed

Single-shot scan,

(260

× n)+2

(188

× n)+2

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

522

378

Double

Single mode

178

106

speed

Single-shot scan,

(176

× n)+2

(104

× n)+2

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

354

210

BCLK

Slow

Normal

Single mode

299

191

mode

speed

Single-shot scan,

(298

× n)+1

(190

× n)+1

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

597

381

Double

Single mode

173

101

speed

Single-shot scan,

(172

× n)+1

(100

× n)+1

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

345

201

Fast

Normal

Single mode

131

mode

speed

Single-shot scan,

(130

× n)+1

(94

× n)+1

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

261

189

Double

Single mode

speed

Single-shot scan,

(88

× n)+1

(52

× n)+1

n-channel scan/continuous mode

Comparator mode

Simultaneous sampling

177

105

Note 1: For single mode and comparator mode, this indicates an A/D conversion or comparate time per channel. For single-

shot and continuous scan modes, this indicates an A/D conversion time per scan loop, and for simultaneous

sampling, this indicates total time for the first and second conversion.

Note 2: This indicates a time from when a register write cycle has finished to when an A/D conversion completion interrupt

request is generated, or a time from when an event bus or other MJT event has occurred to when an A/D conversion

completion interrupt request is generated.

Note: • During 2BCLK mode, 1-2BCLK cycle(s) will be additionally generated at each start/end dummy cycle to synchronize

with the clock.

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