C11 datasheet(56/72 Pages) AMSOSRAM

56 / 72 page

AS3688

austriami crosyst ems

Datasheet, Confidential

www.austriamicrosystems.com (ptr,tje)

Revision 1.1.1 / 20060707

54 - 70

GPIO current

Addr: 2Ch

controls the output current of pin GPIO (e.g. for light sensor)

Bit

Bit Name

Default

Access

Description

3:1

gpio2_curr

000

R/W

000 off

001 2uA

010 4uA

…

111 14uA

ADC_MSB Result

Addr: 27h

Together with Register 27h, this register contains the results (MSB) of an ADC cycle.

Bit

Bit Name

Default

Access

Description

6:0

D9:D3

N/A

ADC results register.

result_not_ready

N/A

Indicates end of ADC conversion cycle.

0 = Result is ready.

1 = Conversion is running.

ADC_LSB Result

Addr: 28h

Together with Register 28h, this register contains the results (LSB) of an ADC cycle

Bit

Bit Name

Default

Access

Description

2:0

D2:D0

N/A

ADC result register.

7:3

N/A

Figure

31 – ADC Timing Diagrams (TBD: TODO: Increase Sample Time to 16us)

Serial Bus

1MHz Clock*

Sample Input*

ADC_ON*

result_not_ready**

D9:0**

start_conversion _

* Internal Signals

** Register Bits

Old Data

Data Not Valid

Data Ready

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