Texas Instruments TMS320DM36x TV Converter Box User Manual


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1Features
1.1BlockDiagram
32-bitPeripheralbus
ADC
Timingandchannel
controller
Comparator
CMPUDATA
InterrupttoCPU
CMPTGT
CMPLDATA
Interrupt
controller
10-bit
Analog-to-digital
converter
6to1 Analoginput
selector
ADC_CH0
ADC_CH1
ADC_CH2
ADC_CH3
ADC_CH4
ADC_CH5
ADCTL
AD1DAT
AD2DAT
AD4DAT
AD3DAT
AD5DAT
AD0DAT
SETDIV
CHSEL
EMUCTRL
SPRUFI7-001
User'sGuide
SPRUFI7–March2009
AnalogtoDigitalConverter(ADC)Interface
DM36xhasa6-channel,10-bitanalog-to-digitalconverter(ADC)interface.TheCPUcommunicatestothe
ADCinterfaceusing32-bit-widecontrolregistersaccessibleviatheinternalperipheralbus.
TheDM36xADCinterfacehasfollowingfeatures:
•SupportssixconfigurableanalogInput
•Supportsforsuccessiveapproximationtype10-bit,A-Dconverter
•Programmablesampling/conversiontime(baseclockisAUXCLK)
•Supportschannelselectbyautoscanconversion
•Supportsmodeselectbyone-shotmodeorfree-runmode
•Programmablesetup(Idle)periodtosecureA/Dsamplingstarttime
•SupportstheclockstopsignalstoconnectthePSC
Figure1showsthedatapathandcontrolpathofADCinterface.
Figure1.ADCIFBlockDiagram
AnalogtoDigitalConverter(ADC)Interface 8SPRUFI7–March2009
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