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SNAD01C

8-CHANNEL 8-BIT ADC

Sonix Technology Co., Ltd 

6.2. Channel Setting

SNAD01C

8-CHANNEL 8-BIT ADC

START

CLK

Channel Setting

HiZ

DIO

CM2 CM1 CM0 CH[7] CH[6] CH[5] CH[4] CH[3] CH[2] CH[1] CH[0] X

X

X

X

X

Port Input

Figure-4 The timing diagram of channel attribute/wakeup setting

(1) Command 001: channel attribute setting.

(2) Command 010: wakeup function setting.

In attribute setting, “1” means analog and “0” means digital. In wakeup setting, “1” means enable

and “0” means disable. After all of the channels are set, the DIO port remains input mode and all

the following data are ignored.

6.3. Control Register Setting

START

CLK

Control Register Setting

DIO

HiZ

CM2

CM

1

CM0

PH

PL

RF

MB

X

X

X

XX

X

XXX

Port Input

Figure-5 The timing diagram of control registers setting

(1) Command ID: (011)

(2) 4-bit data behind command ID are loaded into control registers with the sequence of PH, PL,

RF and MB.

(3) The function of each control registers are as Table-3.

Version: 1.5

7

July 31, 2003

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