M32CSLASH86 datasheet(263/505 Pages) RENESAS

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Page 240

18. A/D Converter

)

(

Function

A/D0 Control Register 2(1)

Bit Name

Bit

Symbol

Address

After Reset

AD0CON2

039416

XX0X X0002

SMP

APS0

APS1

(b4 - b3)

(b7 - b6)

TRG0

A/D Conversion

Method Select Bit

Analog Input Port

Select Bit(2, 3)

0 : Without the sample and hold funtion

1 : With the sample and hold function

External Trigger

Request Cause

Select Bit

0 : Selects ADTRG

1 : Selects a timer B2 interrupt request

of the three-phase motor control

timer functions (after the ICTB2

counter completes counting)

b2b1

0 0 : AN0 to AN7, ANEX0, ANEX1

0 1 : AN150 to AN157

1 0 : AN00 to AN07

1 1 : AN20 to AN27

NOTES:

1. When the AD0CON2 register is rewritten during the A/D conversion, the conversion result is

indeterminate.

2. When the MSS bit in the AD0CON3 register is set to "1" (multi-port sweep mode enabled), set the

APS1 and APS0 bits to "012".

3. The APS1 and APS0 bits can be set to "102" or "112" in single-chip mode only.

Nothing is assigned. When write, set to "0".

When read, its content is indeterminate.

Reserved Bit

Set to "0".

When read, its content is indeterminate.

0 0

Figure 18.4 AD0CON2 Register

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