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Texas Instruments warranty MSP430x11x1 MIXED SIGNAL MICROCONTROLLER

Models: MSP430x11x1

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DThere were less than two positive edges at TEST while RST/NMI is low

MSP430x11x1

MIXED SIGNAL MICROCONTROLLER

SLAS241C ± SEPTEMBER 1999 ± REVISED JUNE 2000

boot ROM containing bootstrap loader (continued)

Program execution begins with the bootstrap vector at 0C00h (boot ROM) if a minimum of two positive edges have been applied to TEST while RST/NMI is low, and TEST is high when RST/NMI goes from low to high. The TEST signal is normally used internally to switch pins P1.4, P1.5, P1.6, and P1.7 between their application function and the JTAG function. If the second rising edge at TEST is applied while RST/NMI is held low, the internal TEST signal is held low and the pins remain in the application mode:

VCC

RST/NMI PIN

TEST PIN

Bootstrap loader Starts

TEST

(Internal)

Test mode can be entered again after TEST is taken low and then back high.

The bootstrap loader will not be started (via the vector in address 0C00h), if:

DThere were less than two positive edges at TEST while RST/NMI is low

DTEST is low if RST/NMI goes from low to high

DJTAG has control over the MSP430 resources

DSupply voltage VCC drops and a POR is executed

WARNING:

The bootstrap loader starts correctly only if the RST/NMI pin is in reset mode. If it is switched to the NMI function, unpredictable program execution may result. However, a bootstrap-load may be started using software and the bootstrap vector, for example the instruction BR &0C00h.

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

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Texas Instruments warranty MSP430x11x1 MIXED SIGNAL MICROCONTROLLER, boot ROM containing bootstrap loader continued

Contents

D Basic Clock Module Configurations MIXED SIGNAL MICROCONTROLLERD Ultralow-Power Consumption D Five Power Saving Modesfunctional block diagram MSP430x11x1 MIXED SIGNAL MICROCONTROLLERMIXED SIGNAL MICROCONTROLLER Terminal Functionsshort-form description processing unitTable 2. Address Mode Descriptions short-form description continuedinstruction set Table 1. Instruction Word FormatsMSP430x11x1 MIXED SIGNAL MICROCONTROLLER low-power consumption capabilitiesoperation modes and interrupts instruction set continuedMSP430x11x1 MIXED SIGNAL MICROCONTROLLER status register R2INTERRUPT FLAG interrupt vector addressesMSP430x11x1 MIXED SIGNAL MICROCONTROLLER INTERRUPT SOURCEspecial function registers interrupt enable 1 andReset on VCC power-on or reset condition at Flag set on oscillator faultMSP430x11x1 MIXED SIGNAL MICROCONTROLLER boot ROM containing bootstrap loaderfunctions of the bootstrap loader memory organizationMSP430x11x1 MIXED SIGNAL MICROCONTROLLER boot ROM containing bootstrap loader continuedfeatures of the bootstrap loader are hardware resources used for serial input/outputD There were less than two positive edges at TEST while RST/NMI is low MSP430x11x1 MIXED SIGNAL MICROCONTROLLERboot ROM containing bootstrap loader continued MSP430x11x1 MIXED SIGNAL MICROCONTROLLER flash memoryflash memory control register FCTL1 0128h, bit1, Erase a segment flash memory, timing generator, control register FCTL2flash memory control register FCTL1 continued EraseMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 1. Flash Memory Timing Generator Diagramflash memory, timing generator, control register FCTL2 continued flash memory control register FCTL3BUSY flash memory control register FCTL3 continuedMIXED SIGNAL MICROCONTROLLER MSP430x11x1LOCK flash memory, interrupt and security key violationMSP430x11x1 MIXED SIGNAL MICROCONTROLLER flash memory control register FCTL3 continuedIFG1.4 Figure 2. Block Diagram of NMI Interrupt SourcesMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Flash ModuleMSP430x11x1 MIXED SIGNAL MICROCONTROLLER peripheralsoscillator and system clock MSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 3. Clock Signalsoscillator and system clock continued digital I/OMSP430x11x1 MIXED SIGNAL MICROCONTROLLER watchdog timerTimerA Three capture/compare registers digital I/O continuedMSP430x11x1 MIXED SIGNAL MICROCONTROLLER TimerA 3 capture/compare registers continuedFigure 4. TimerA, MSP430x11x1 Configuration UARTMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 5. Block Diagram of ComparatorAComparatorA MSP430x11x1 ComparatorA continuedMIXED SIGNAL MICROCONTROLLER 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 circuitry slope a/d conversionMSP430x11x1 MIXED SIGNAL MICROCONTROLLER ComparatorA continuedMSP430x11x1 MIXED SIGNAL MICROCONTROLLER peripheral file mapVoltage applied at V CC to V SS MSP430C11x1 absolute maximum ratings²recommended operating conditions MSP430x11x1 MIXED SIGNAL MICROCONTROLLERMSP430x11x1 MIXED SIGNAL MICROCONTROLLER recommended operating conditions continuedMSP430x11x1 Devices Figure 6. Frequency vs Supply VoltageMSP430x11x1 MIXED SIGNAL MICROCONTROLLER supply current into VCC excluding external current fsystem = 1 MHzcurrent consumption of active mode versus supply voltage, C version current consumption of active mode versus supply voltage, F versionMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Schmitt-trigger inputs Port P1 to Port P2 P1.0 to P1.7, P2.0 to P2.5outputs Port 1 to P2 P1.0 to P1.7, P2.0 to P2.5 leakage currentMSP430x11x1 MIXED SIGNAL MICROCONTROLLER internal signals TAx, SMCLK at TimerAoptional resistors, individually programmable with ROM code see Note inputs Px.x, TAxt res ponse HL outputs P1.x, P2.x, TAxComparatorA see Note MSP430x11x1 MIXED SIGNAL MICROCONTROLLERMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 7. VRefVT vs Temperature, VCC = 3 V, C1121Figure 8. VRefVT vs Temperature, VCC = 2.2 V, C1121 τ ≈ 2.0 ∝ s Figure 9. Block Diagram of ComparatorA ModuleFigure 10. Overdrive Definition PUC/POR MSP430x11x1 MIXED SIGNAL MICROCONTROLLERMSP430x11x1 MIXED SIGNAL MICROCONTROLLER Figure 11. Power-On Reset POR vs Supply VoltageFigure 12. VPOR vs Temperature crystal oscillator,LFXT1 fDCOx0 Figure 13. DCO CharacteristicsMSP430x11x1 MIXED SIGNAL MICROCONTROLLER fDCOx7MSP430x11x1 MIXED SIGNAL MICROCONTROLLER principle characteristics of the DCOwake-up from lower power modes LPMx JTAG/programmingMSP430x11x1 MIXED SIGNAL MICROCONTROLLER APPLICATION INFORMATION input/output schematicPort P1, P1.0 to P1.3, input/output with Schmitt-trigger MSP430x11x1 MIXED SIGNAL MICROCONTROLLER APPLICATION INFORMATIONAPPLICATION INFORMATION MSP430x11x1Port P2, P2.0 to P2.2, input/output with Schmitt-trigger MIXED SIGNAL MICROCONTROLLERAPPLICATION INFORMATION Port P2, P2.3 to P2.4, input/output with Schmitt-triggerMSP430x11x1 MIXED SIGNAL MICROCONTROLLER APPLICATION INFORMATIONMSP430x11x1 MIXED SIGNAL MICROCONTROLLER APPLICATION INFORMATION Port P2, unbonded bits P2.6 and P2.7MSP430x11x1 MIXED SIGNAL MICROCONTROLLER JTAG fuse check modeMSP430x11x1 MIXED SIGNAL MICROCONTROLLER MECHANICAL DATADW R-PDSO-G PLASTIC SMALL-OUTLINE PACKAGEMECHANICAL DATA PW R-PDSO-GPLASTIC SMALL-OUTLINE PACKAGE MSP430x11x1 MIXED SIGNAL MICROCONTROLLERIMPORTANT NOTICE