LM3S1621 Datasheet, PDF (11/947 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Stellaris^® LM3S1621 Microcontroller
Figure 10-11. Write Followed by Read to External FIFO ............................................................ 474
Figure 10-12. Two-Entry FIFO ................................................................................................. 474
Figure 10-13. Single-Cycle Write Access, FRM50=0, FRMCNT=0, WRCYC=0 ........................... 478
Figure 10-14. Two-Cycle Read, Write Accesses, FRM50=0, FRMCNT=0, RDCYC=1,
WRCYC=1 ........................................................................................................ 478
Figure 10-15. Read Accesses, FRM50=0, FRMCNT=0, RDCYC=1 ............................................ 479
Figure 10-16. FRAME Signal Operation, FRM50=0 and FRMCNT=0 ......................................... 479
Figure 10-17. FRAME Signal Operation, FRM50=0 and FRMCNT=1 ......................................... 479
Figure 10-18. FRAME Signal Operation, FRM50=0 and FRMCNT=2 ......................................... 480
Figure 10-19. FRAME Signal Operation, FRM50=1 and FRMCNT=0 ......................................... 480
Figure 10-20. FRAME Signal Operation, FRM50=1 and FRMCNT=1 ......................................... 480
Figure 10-21. FRAME Signal Operation, FRM50=1 and FRMCNT=2 ......................................... 480
Figure 10-22. iRDY Signal Operation, FRM50=0, FRMCNT=0, and RD2CYC=1 ......................... 481
Figure 10-23. EPI Clock Operation, CLKGATE=1, WR2CYC=0 ................................................. 482
Figure 10-24. EPI Clock Operation, CLKGATE=1, WR2CYC=1 ................................................. 482
Figure 11-1. GPTM Module Block Diagram ............................................................................ 526
Figure 11-2. Timer Daisy Chain ............................................................................................. 532
Figure 11-3. Input Edge-Count Mode Example ....................................................................... 534
Figure 11-4. 16-Bit Input Edge-Time Mode Example ............................................................... 535
Figure 11-5. 16-Bit PWM Mode Example ................................................................................ 536
Figure 12-1. WDT Module Block Diagram .............................................................................. 573
Figure 13-1. ADC Module Block Diagram ............................................................................... 598
Figure 13-2. ADC Sample Phases ......................................................................................... 602
Figure 13-3. Sample Averaging Example ............................................................................... 603
Figure 13-4. ADC Input Equivalency Diagram ......................................................................... 603
Figure 13-5. Internal Voltage Conversion Result ..................................................................... 604
Figure 13-6. External Voltage Conversion Result .................................................................... 605
Figure 13-7. Differential Sampling Range, V_{IN_ODD} = 1.5 V ...................................................... 606
Figure 13-8. Differential Sampling Range, V_{IN_ODD} = 0.75 V .................................................... 607
Figure 13-9. Differential Sampling Range, V_{IN_ODD} = 2.25 V .................................................... 607
Figure 13-10. Internal Temperature Sensor Characteristic ......................................................... 608
Figure 13-11. Low-Band Operation (CIC=0x0) .......................................................................... 610
Figure 13-12. Mid-Band Operation (CIC=0x1) .......................................................................... 611
Figure 13-13. High-Band Operation (CIC=0x3) ......................................................................... 612
Figure 14-1. UART Module Block Diagram ............................................................................. 671
Figure 14-2. UART Character Frame ..................................................................................... 674
Figure 14-3. IrDA Data Modulation ......................................................................................... 676
Figure 14-4. LIN Message ..................................................................................................... 678
Figure 14-5. LIN Synchronization Field ................................................................................... 679
Figure 15-1. SSI Module Block Diagram ................................................................................. 735
Figure 15-2. TI Synchronous Serial Frame Format (Single Transfer) ........................................ 739
Figure 15-3. TI Synchronous Serial Frame Format (Continuous Transfer) ................................ 739
Figure 15-4. Freescale SPI Format (Single Transfer) with SPO=0 and SPH=0 .......................... 740
Figure 15-5. Freescale SPI Format (Continuous Transfer) with SPO=0 and SPH=0 .................. 740
Figure 15-6. Freescale SPI Frame Format with SPO=0 and SPH=1 ......................................... 741
Figure 15-7. Freescale SPI Frame Format (Single Transfer) with SPO=1 and SPH=0 ............... 742
Figure 15-8. Freescale SPI Frame Format (Continuous Transfer) with SPO=1 and SPH=0 ........ 742
Figure 15-9. Freescale SPI Frame Format with SPO=1 and SPH=1 ......................................... 743
January 21, 2012
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