M32CSLASH8B datasheet(272/406 Pages) RENESAS

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Under development

M32C/8B Group

18. A/D Converter

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 255 of 385

Figure 18.4

AD0CON2 Register

0 0

b6 b5 b4

Symbol

AD0CON2

Address

0394h

After Reset

XX0X X000b

Function

Bit Symbol

Bit Name

−

(b7-b6)

Reserved bits

−

(b4-b3)

External trigger source select bit

TRG0

A/D0 Control Register 2(1)

APS0

APS1

When the MSS bit in the AD0CON3 register = 0

b2 b1

0 0: AN_0 to AN_7, ANEX0, ANEX1

0 1: AN15_0 to AN15_7(2)

1 0: AN0_0 to AN0_7

1 1: AN2_0 to AN2_7

When the MSS bit in the AD0CON3 register = 1

Set to 01b.

Analog input port

select bits(3)

SMP

0: ADTRG selected

1: Timer B2 interrupt request of the three-phase

motor control timer function (after the ICTB2

Set to 0.

Read as undefined value.

NOTES:

1. If the AD0CON2 register is rewritten during A/D conversion, the conversion result will be incorrect.

2. In the 100-pin package, do not set to 01b.

3. Set to 00b or 01b in memory expansion mode and microprocessor mode.

A/D conversion method

select bit

0: Without sample and hold

1: With sample and hold

Unimplemented.

Write 0. Read as undefined value.

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