M32CSLASH8A datasheet(276/372 Pages) RENESAS

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M32C/8A Group

18. A/D Converter

Rev.1.00

Jul 15, 2007

Page 259 of 352

REJ09B0385-0100

If analog input shares the pin with other peripheral function inputs, a through current may flow to the peripheral

function inputs when an intermediate voltage is applied to the pin. To prevent through current, set the control bit for

the corresponding pin to 1, and other peripheral inputs are disconnected.

Table 18.2

Analog Input Pin Setting

18.1

Mode Descriptions

The A/D converter has seven different modes. Table 18.3 lists settings for these modes.

Table 18.3

Mode Settings

−: Can be either 0 or 1.

Function

Control Bit

PSC Register

PSL3 Register

P9_5

ANEX0

−

PSL3_5 = 1

P9_6

ANEX1

−

PSL3_6 = 1

P10_4

AN_4

PSC_7 = 1

−

P10_5

AN_5

−

P10_6

AN_6

−

P10_7

AN_7

−

Mode

AD0CON0 register

AD0CON1 register

AD0CON3 register

MD1 bit

MD0 bit

MD2 bit

MSS bit

DUS bit

One-shot mode

−

Repeat mode

−

Single sweep mode

−

Repeat sweep mode 0

−

Repeat sweep mode 1

−

Multi-port single sweep mode

Multi-port repeat sweep mode 0

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