Instruction/ maintenance manual of the product TMS320DM36x Texas Instruments
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TMS320DM36x DMSoC Analog to Digital Converter (ADC) Interface User's Guide Literature Number: SPRUFI7 March 2009.
2 SPRUFI7 – March 2009 Submit Documentation Feedback.
Contents Preface ........................................................................................................................................ 5 1 Features ....................................................................................
www.ti.com List of Figures 1 ADC IF Block Diagram ...................................................................................................... 8 2 ADC Control (ADCTL) Register .................................................................
Preface SPRUFI7 – March 2009 Read This First About This Manual This document describes the analog-to-digital converter (ADC) interface peripheral in the TMS320DM36x Digital Media System-on-Chip (DMSoC). Notational Conventions This document uses the following conventions.
Related Documentation From Texas Instruments www.ti.com SPRUFH2 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Universal Asynchronous Receiver/Transmitter (UART) Users Guide This document describes the universal asynchronous receiver/transmitter (UART) peripheral in the TMS320DM36x Digital Media System-on-Chip (DMSoC).
www.ti.com Related Documentation From Texas Instruments SPRUFI2 — TMS320DM36x Digital Media System-on-Chip (DMSoC) DDR2/Mobile DDR (DDR2/mDDR) Memory Controller Users Guide This document describes the DDR2/mDDR memory controller in the TMS320DM36x Digital Media System-on-Chip (DMSoC).
1 Features 1.1 Block Diagram 32-bitPeripheralbus ADC T imingandchannel controller Comparator CMPUDA T A InterrupttoCPU CMPTGT CMPLDA T A Interrupt controller 10-bit Analog-to-digital.
1.2 Industry Compliance Statement 2 Peripheral Architecture 2.1 Clock Control 2.2 Signal Descriptions 2.3 Functional Operation 2.3.1 One-Shot Mode Operation www.ti.com Peripheral Architecture The ADC interface does not conform to any recognized industry standards.
2.3.2 Free-Run Mode Operation 2.4 Reset Considerations 2.4.1 Software Reset Considerations 2.4.2 Hardware Reset Considerations 2.5 Interrupt Support 2.5.1 Interrupt Events and Requests 2.5.2 Interrupt Multiplexing Peripheral Architecture www.ti.com In free-run mode operation, the ADC interface performs A/D conversion continuously without stopping.
2.6 EDMA Event Support 2.7 Power Management 2.8 Emulation Considerations 3 Registers www.ti.com Registers The ADC interface module does not generate an EDMA event. The ADC interface can be placed in reduced-power modes to conserve power during periods of low activity.
3.1 ADCTL Registers www.ti.com The ADC control register (ADCTL) is shown in Figure 2 and described in Table 2 . Figure 2. ADC Control (ADCTL) Register 31 24 Reserved R-0 23 16 Reserved R-0 15 8 Reserv.
3.2 CMPTGT 3.3 CMPLDAT www.ti.com Registers The comparator target channel (CMPTGT) register is shown in Figure 3 and described in Table 3 . Figure 3. Comparator Target Channel (CMPTGT) Register 31 6 5 0 Reserved CMPTGT R-0 R/W-0 LEGEND: R/W = Read/Write; R = Read only; - n = value after reset Table 3.
3.4 CMPUDAT 3.5 SETDIV 3.6 CHSEL Registers www.ti.com The comparison A/D Upper data (CMPUDAT) register is shown in Figure 5 and described in Table 5 . Figure 5. Comparison A/D Upper Data (CMPUDAT) Register 31 10 9 0 Reserved CMPUDAT R-0 R/W-0 LEGEND: R/W = Read/Write; R = Read only; - n = value after reset Table 5.
3.7 AD0DAT 3.8 AD1DAT www.ti.com Registers Table 7. CHSEL setting for Channel selection CHSEL Selected Channel 000001b Channel 0 000010b Channel 1 000100b Channel 2 001000b Channel 3 010000b Channel 4 100000b Channel 5 Figure 7.
3.9 AD2DAT 3.10 AD3DAT 3.11 AD4DAT Registers www.ti.com Table 10. A/D Conversion Data 1 (AD1DAT) Field Descriptions Bit Field Value Description 31-10 Reserved Any writes to these bit(s) must always have a value of 0.
3.12 AD5DAT 3.13 EMUCTRL www.ti.com Registers Table 13. A/D Conversion Data 4 (AD4DAT) Field Descriptions Bit Field Value Description 31-10 Reserved Any writes to these bit(s) must always have a value of 0. 9-0 AD4DAT A/D conversion data for channel 4 The A/D conversion data 5 (AD5DAT) register is shown in and described in .
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