SH79F166APSLASH044PR datasheet(87/113 Pages) SINOWEALTH

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SH79F166A

8.5.3 ADC Register

Table 8.26 ADC Control Register

93H, Bank0

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

ADCON

ADON

ADCIF

REFC

SCH2

SCH1

SCH0

GO/DONE

—---—-----—

R/W

Reset Value

(POR/WDT/LVR/PIN)

Bit Number

Bit Mnemonic

Description

ADON

ADC Enable bit

0: Disable the ADC module

1: Enable the ADC module

ADCIF

ADC Interrupt Flag bit

0: No ADC interrupt, cleared by software.

1: Set by hardware to indicate that the AD Convert has been completed, or analog

input is larger than ADDH/ADDL if compare is enabled

Compare Function Enable bit

0: Compare function disabled

1: Compare function enabled

REFC

Reference Voltage Select bit

0: the reference voltage connected to VDD

1: the reference voltage input from VREF pin

3-1

SCH[2:0]

ADC channel Select bits

000: ADC channel AN0

001: ADC channel AN1

010: ADC channel AN2

011: ADC channel AN3

100: ADC channel AN4

101: ADC channel AN5

110: ADC channel AN6

111: ADC channel AN7

GO/DONE

—---—------—

ADC status flag bit

0: Automatically cleared by hardware when AD convert is completed. Clearing this

bit during converting time will stop current conversion. If Compare function is

enabled, this bit will not be cleared by hardware until software clear.

1: Set to start AD convert or digital compare.

Notes:

When select the reference voltage input from VREF pin (REFC = 1), the P4.4 is shared as VREF input rather than AN3 input.

SH79F166AP/044PR Datasheet(PDF) 87 Page - SINOWEALTH Electronic Ltd

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