UPSD3212C-40U6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

UPSD3212C-40U6

Flash programmable system devices with 8032 MCU and USB and programmable logic

STMicroelectronics 

uPSD3212A, uPSD3212C, uPSD3212CV

Table 46. ADC SFR Memory Map

SFR Reg

Addr Name

7

6

Bit Register Name

5

4

3

2

1

0

Reset

Value

Comments

95 ASCL

8-bit

00 Prescaler for

ADC clock

96 ADAT

ADAT7

ADAT6 ADAT5 ADAT4 ADAT3 ADAT2 ADAT1 ADAT0

00

ADC Data

Register

97 ACON

ADEN

ADS1 ADS0 ADST

ADSF

00

ADC Control

Register

Table 47. Description of the ACON Bits

Bit

Symbol

Function

7 to 6

—

Reserved

5

ADEN

ADC Enable Bit: 0 : ADC shut off and consumes no operating current

1 : enable ADC

4

—

Reserved

ADS1, ADS0 Analog channel select

0, 0

3 to 2

0, 1

1, 0

1, 1

Channel0 (ACH0)

Channel1 (ACH1)

Channel2 (ACH2)

Channel3 (ACH3)

1

ADST

ADC Start Bit: 0 : force to zero

1 : start an ADC; after one cycle, bit is cleared to '0'

0

ADSF

ADC Status Bit: 0 : A/D conversion is in process

1 : A/D conversion is completed, not in process

Table 48. ADC Clock Input

MCU Clock Frequency

40MHz

36MHz

24MHz

12MHz

Prescaler Register Value

2

2

1

0

ADC Clock

6.7MHz

6MHz

6MHz

6MHz

66/163

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