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Texas Instruments warranty slope a/d conversion, MSP430x11x1 MIXED SIGNAL MICROCONTROLLER

Models: MSP430x11x1

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slope a/d conversion

MSP430x11x1

MIXED SIGNAL MICROCONTROLLER

SLAS241C ± SEPTEMBER 1999 ± REVISED JUNE 2000

Comparator_A (continued)

CACTL1

059h

	7							0

	CAEX	CA	CA	CA	CAON	CAIES	CAIE	CAIFG
	CAEX	RSEL	REF1	REF0	CAON	CAIES	CAIE	CAIFG
		RSEL	REF1	REF0

	rw-(0)	rw-(0)	rw-(0)	rw-(0) rw-(0)		rw-(0)	rw-(0)	rw-(0)

CACTL2

05Ah

CAPD 05Bh

	7							0
	CACTL	CACTL	CACTL	CACTL	CA1	CA0	CAF	CAOUT
	2.7	2.6	2.5	2.4	CA1	CA0	CAF	CAOUT
	2.7	2.6	2.5	2.4

	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)	r-(0)
	7							0

	CAPD7	CAPD6	CAPD5	CAPD4	CAPD3	CAPD2	CAPD1	CAPD0

	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)	rw-(0)

NOTE:

Ensure that the comparator input terminals are connected to signal, power, or ground level. Otherwise, floating levels may cause unexpected interrupts and current consumption may be increased.

slope a/d conversion

The Comparator_A is well suited for use in single or multiple-slope conversions. The internal-reference levels may be used to set a reference during timing measurement of charge or discharge operations. They can also be used externally to bias analog circuitry.

Voltage, current, and resistive or capacitive sensor measurements are basic functions. The sensors sense physical conditions like temperature, pressure, acceleration, etc.

24	POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

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Texas Instruments warranty slope a/d conversion, MSP430x11x1 MIXED SIGNAL MICROCONTROLLER, ComparatorA continued

Contents

MIXED SIGNAL MICROCONTROLLER D Ultralow-Power ConsumptionD Five Power Saving Modes D Basic Clock Module ConfigurationsMSP430x11x1 MIXED SIGNAL MICROCONTROLLER functional block diagramTerminal Functions short-form descriptionprocessing unit MIXED SIGNAL MICROCONTROLLERshort-form description continued instruction setTable 1. Instruction Word Formats Table 2. Address Mode Descriptionslow-power consumption capabilities operation modes and interruptsinstruction set continued MSP430x11x1 MIXED SIGNAL MICROCONTROLLERstatus register R2 MSP430x11x1 MIXED SIGNAL MICROCONTROLLERinterrupt vector addresses MSP430x11x1 MIXED SIGNAL MICROCONTROLLERINTERRUPT SOURCE INTERRUPT FLAGinterrupt enable 1 and Reset on VCC power-on or reset condition atFlag set on oscillator fault special function registersboot ROM containing bootstrap loader functions of the bootstrap loadermemory organization MSP430x11x1 MIXED SIGNAL MICROCONTROLLERboot ROM containing bootstrap loader continued features of the bootstrap loader arehardware resources used for serial input/output MSP430x11x1 MIXED SIGNAL MICROCONTROLLERMSP430x11x1 MIXED SIGNAL MICROCONTROLLER boot ROM containing bootstrap loader continuedD There were less than two positive edges at TEST while RST/NMI is low flash memory flash memory control register FCTL1MSP430x11x1 MIXED SIGNAL MICROCONTROLLER flash memory, timing generator, control register FCTL2 flash memory control register FCTL1 continuedErase 0128h, bit1, Erase a segmentFigure 1. Flash Memory Timing Generator Diagram flash memory, timing generator, control register FCTL2 continuedflash memory control register FCTL3 MSP430x11x1 MIXED SIGNAL MICROCONTROLLERflash memory control register FCTL3 continued MIXED SIGNAL MICROCONTROLLERMSP430x11x1 BUSYflash memory, interrupt and security key violation MSP430x11x1 MIXED SIGNAL MICROCONTROLLERflash memory control register FCTL3 continued LOCKFigure 2. Block Diagram of NMI Interrupt Sources MSP430x11x1 MIXED SIGNAL MICROCONTROLLERFlash Module IFG1.4peripherals oscillator and system clockMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 3. Clock Signals oscillator and system clock continueddigital I/O MSP430x11x1 MIXED SIGNAL MICROCONTROLLERwatchdog timer TimerA Three capture/compare registersdigital I/O continued MSP430x11x1 MIXED SIGNAL MICROCONTROLLERTimerA 3 capture/compare registers continued Figure 4. TimerA, MSP430x11x1 ConfigurationUART MSP430x11x1 MIXED SIGNAL MICROCONTROLLERFigure 5. Block Diagram of ComparatorA ComparatorAMSP430x11x1 MIXED SIGNAL MICROCONTROLLER ComparatorA continued MIXED SIGNAL MICROCONTROLLERMSP430x11x1 slope a/d conversion MSP430x11x1 MIXED SIGNAL MICROCONTROLLERComparatorA continued The ComparatorA is well suited for use in single or multiple-slope conversions. The internal-reference levels may be used to set a reference during timing measurement of charge or discharge operations. They can also be used externally to bias analog circuitryperipheral file map MSP430x11x1 MIXED SIGNAL MICROCONTROLLERabsolute maximum ratings² recommended operating conditionsMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Voltage applied at V CC to V SS MSP430C11x1recommended operating conditions continued MSP430x11x1 DevicesFigure 6. Frequency vs Supply Voltage MSP430x11x1 MIXED SIGNAL MICROCONTROLLERsupply current into VCC excluding external current fsystem = 1 MHz current consumption of active mode versus supply voltage, C versioncurrent consumption of active mode versus supply voltage, F version MSP430x11x1 MIXED SIGNAL MICROCONTROLLERSchmitt-trigger inputs Port P1 to Port P2 P1.0 to P1.7, P2.0 to P2.5 outputs Port 1 to P2 P1.0 to P1.7, P2.0 to P2.5leakage current MSP430x11x1 MIXED SIGNAL MICROCONTROLLERinternal signals TAx, SMCLK at TimerA optional resistors, individually programmable with ROM code see Noteinputs Px.x, TAx MSP430x11x1 MIXED SIGNAL MICROCONTROLLERoutputs P1.x, P2.x, TAx ComparatorA see NoteMSP430x11x1 MIXED SIGNAL MICROCONTROLLER t res ponse HLFigure 7. VRefVT vs Temperature, VCC = 3 V, C1121 Figure 8. VRefVT vs Temperature, VCC = 2.2 V, C1121MSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 9. Block Diagram of ComparatorA Module Figure 10. Overdrive Definition PUC/PORMSP430x11x1 MIXED SIGNAL MICROCONTROLLER τ ≈ 2.0 ∝ sFigure 11. Power-On Reset POR vs Supply Voltage Figure 12. VPOR vs Temperature crystal oscillator,LFXT1MSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 13. DCO Characteristics MSP430x11x1 MIXED SIGNAL MICROCONTROLLERfDCOx7 fDCOx0principle characteristics of the DCO wake-up from lower power modes LPMxJTAG/programming MSP430x11x1 MIXED SIGNAL MICROCONTROLLERAPPLICATION INFORMATION input/output schematic Port P1, P1.0 to P1.3, input/output with Schmitt-triggerMSP430x11x1 MIXED SIGNAL MICROCONTROLLER APPLICATION INFORMATION MSP430x11x1 MIXED SIGNAL MICROCONTROLLERMSP430x11x1 Port P2, P2.0 to P2.2, input/output with Schmitt-triggerMIXED SIGNAL MICROCONTROLLER APPLICATION INFORMATIONPort P2, P2.3 to P2.4, input/output with Schmitt-trigger MSP430x11x1 MIXED SIGNAL MICROCONTROLLERAPPLICATION INFORMATION APPLICATION INFORMATIONMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Port P2, unbonded bits P2.6 and P2.7 MSP430x11x1 MIXED SIGNAL MICROCONTROLLERJTAG fuse check mode APPLICATION INFORMATIONMECHANICAL DATA DW R-PDSO-GPLASTIC SMALL-OUTLINE PACKAGE MSP430x11x1 MIXED SIGNAL MICROCONTROLLERPW R-PDSO-G PLASTIC SMALL-OUTLINE PACKAGEMSP430x11x1 MIXED SIGNAL MICROCONTROLLER MECHANICAL DATAIMPORTANT NOTICE