MC9S12VR-Family - Data Sheet - Freescale Semiconductor

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Low-Side Drivers - LSDRV (S12LSDRV1) 14.4 Functional Description 14.4.1 General The LSDRV module provides two low-side drivers able to drive inductive loads (relays). The driver gate can be controlled directly through register bits or alternatively by dedicated timer or PWM channels. See PIM section for routing details. Both drivers feature an open-load and over-current detection described in the following sub-sections. In addition to this an active clamp (for driving relays) is protecting each driver stage. The active clamp will turn on a low-side FET if the voltage on a pin exceeds V CLAMP when the gate is turned off. 14.4.2 Open-Load Detection A “High-load resistance Open Load Detection” can be enabled for each driver by setting the corresponding LSOLEx bit (refer to Section 14.3.4, “LSDRV Configuration Register (LSCR)”. This detection will only be executed when the driver is enabled and it is not being driven (LSDRx = 0). That is because the measurement point is between the load and the driver, and the current should not go through the driver. To detect an open-load condition the voltage will be observed at the output from the driver. Then if the driving pin LSx stays at low voltage which is approximately LSGND, there is no load for the corresponding low-side driver. An open-load condition is flagged with bits LSOL0 and LSOL1 in the LSDRV Status Register (LSSR). 14.4.3 Over-Current Detection Each low-side driver has an over-current detection while enabled with a current threshold of I LIMLSX . If over-current is detected the related interrupt flag (LSOCIF1 or LSOCIF0) is set in the LSDRV Interrupt Flag Register (LSIF). As long as the over-current interrupt flag remains set the related low-side driver gate is turned off to protect the circuit. NOTE Although the gate is turned off by the over-current detection, the open-load detection might not be active. Open-load detection is only active if the selected source (e.g. PWM, Timer, LSDRx) for the low-side driver is turned off. Clearing the related over-current interrupt flag returns back the control of the gate to the selected source in the PIM module. 14.4.4 Interrupts This section describes the interrupt generated by LSDRV module. The interrupt is only available in CPU run mode. Entering and exiting CPU stop mode has no effect on the interrupt flags. The LSDRV interrupt vector is named in Table 14-11. Vector addresses and interrupt priorities are defined at MCU level. MC9S12VR Family Reference Manual, Rev. 2.8 420 Freescale Semiconductor
14.4.4.1 LSDRV Over Current Interrupt (LSOCI) MC9S12VR Family Reference Manual, Rev. 2.8 Low-Side Drivers - LSDRV (S12LSDRV1) If a low-side driver over-current event is detected the related interrupt flag LSOCIFx asserts. Depending on the setting of the LSDRV Error Interrupt Enable (LSOCIE) bit an interrupt is requested. 14.5 Application Information 14.5.1 Use Cases Table 14-11. LSDRV Interrupt Sources Module Interrupt Source Module Internal Interrupt Source Local Enable LSDRV Interrupt (LSI) LSDRV Over-Current Interrupt (LSOCI) LSOCIE=1 This section describes the common uses of the low-side driver and how should it be configured. It also describes its dependencies with other modules and their configuration for the specific use case. 14.5.1.1 Controlling directly the Low Side Driver 14.5.1.2 Using the Low Side Driver with a timer 14.5.1.3 Using the Low Side Driver with PWM Freescale Semiconductor 421
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MC9S12VR-Family Reference Manual S1
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Chapter 1 Device Overview MC9S12VR-
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2.3.34 Port L Analog Access Registe
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5.2 External Signal Description . .
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Chapter 9 Pulse-Width Modulator (S1
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12.4.6 Gated Time Accumulation Mode
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16.1.2 Modes of Operation . . . . .
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Appendix H LSDRV Electrical Specifi
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1.3 Chip-Level Features Feature MC9
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1.4.4 Main External Oscillator (XOS
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• Programmable polarity for trans
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1.5 Block Diagram PE0 PE1 VSUP VSS
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Address Module NOTE Reserved regist
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1.6.1 Part ID Assignments MC9S12VR
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1.7.2.7 PS[5:0] — Port S I/O Sign
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1.7.2.21 IOC[3:0] Signals MC9S12VR
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1.8.1 Pinout 48-pin LQFP LGND LIN (
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Package Function 48 LQ FP 32 LQ FP
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1.9 Modes of Operation MC9S12VR Fam
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1.11.2 Interrupt Vectors MC9S12VR F
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MC9S12VR Family Reference Manual, R
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Chapter 2 Port Integration Module (
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Port Pin Name 2.3 Memory Map and Re
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Global Address 0x0243 Reserved 0x02
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Global Address 0x0272 Reserved 0x02
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2.3.3 Port E Data Register (PORTE)
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1 Read: Anytime Write: Anytime Tabl
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2.3.10 Port T Data Register (PTT) M
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2.3.12 Port T Data Direction Regist
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2.3.15 Module Routing Register 0 (M
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Table 2-16. PTS Register Field Desc
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2.3.19 Port S Data Direction Regist
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2.3.21 Port S Polarity Select Regis
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MODRR20 MODRR21 TXD0 0 1 1 0 LPTXD
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Table 2-24. PTP Register Field Desc
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2.3.26 Port P Data Direction Regist
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2.3.29 Port P Polarity Select Regis
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2.3.32 Port L Input Register (PTIL)
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3 PTAENL 1-0 PTAL Table 2-34. PTAL
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2.3.37 Port L Interrupt Enable Regi
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2.3.41 Port AD Data Direction Regis
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2.3.44 Port AD Interrupt Enable Reg
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2.4.3.4 Port S MC9S12VR Family Refe
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Glitch, filtered out, no interrupt
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110K / 550K PIRL=0 / PIRL=1 HV Supp
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Chapter 3 S12G Memory Map Controlle
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3.2 External Signal Description Fig
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Read: Anytime. Write: Only if a tra
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3.3.2.4 Program Page Index Register
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0x0000 0x0400 0x8000 0xC000 0xFFFF
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Chapter 4 S12 Clock, Reset and Powe
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4.1.3 S12CPMU_UHV Block Diagram VSU
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4.2 Signal Description MC9S12VR Fam
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4.3 Memory Map and Registers MC9S12
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4.3.2 Register Descriptions MC9S12V
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Table 4-5. CPMUCLKS Descriptions Fi
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4.3.2.7 S12CPMU_UHV PLL Control Reg
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RTR[3:0] 0000 (÷1) 000 (OFF) OFF 1
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4.3.2.9 S12CPMU_UHV COP Control Reg
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Table 4-14. COP Watchdog Rates if C
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4.3.2.14 Low Voltage Control Regist
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APIES=0 APIES=1 MC9S12VR Family Ref
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4.3.2.18 Reserved Register CPMUTEST
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frequency MC9S12VR Family Reference
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4.3.2.23 Reserved Register CPMUTEST
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4.4.6 System Clock Configurations 4
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Chapter 5 Background Debug Module (
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5.1.3 Block Diagram A block diagram
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Global Address Register Name 0x3_FF
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Register Global Address 0x3_FF06 Fi
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• Hardware BACKGROUND command •
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5.4.5 BDM Command Structure Table 5
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Hardware Read Hardware Write Firmwa
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BDM Clock (Target MCU) Host Drive t
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5.4.9 SYNC — Request Timed Refere
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Chapter 6 S12S Debug Module (S12SDB
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• 4-stage state sequencer for tra
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Address: 0x0021 Reset POR Read: Any
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6.3.2.4 Debug Control Register2 (DB
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6.3.2.6 Debug Count Register (DBGCN
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6.3.2.7.1 Debug State Control Regis
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6.3.2.7.3 Debug State Control Regis
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Address: 0x0028 Read: DBGACTL if CO
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6.3.2.8.2 Debug Comparator Address
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6.3.2.8.6 Debug Comparator Data Low
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6.4.2.1.2 Comparator B MC9S12VR Fam
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RTI ; The execution flow taking int
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Field2 Bits in Normal and Loop1 Mod
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6.5.6 Scenario 5 MC9S12VR Family Re
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Chapter 7 Interrupt Module (S12SINT
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7.2 External Signal Description The
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Chapter 8 Analog-to-Digital Convert
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8.1.2 Modes of Operation 8.1.2.1 Co
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8.2 Signal Description This section
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8.3.2.3 ATD Control Register 2 (ATD
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Table 8-15. Analog Input Channel Se
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3-0 CC[3:0] 8.3.2.8 ATD Compare Ena
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8.3.2.10 ATD Input Enable Register
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8.3.2.12.2 Right Justified Result D
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Chapter 9 Pulse-Width Modulator (S1
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9.3 Memory Map and Register Definit
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Register Name 0x0016 PWMPER2 2 0x00
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9.3.2.2 PWM Polarity Register (PWMP
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9.3.2.6 PWM Control Register (PWMCT
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Module Base + 0x00006 Read: Anytime
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9.3.2.10 PWM Channel Counter Regist
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• The channel is disabled MC9S12V
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Divide by Prescaler Taps: Bus Clock
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9.4.2 PWM Channel Timers MC9S12VR F
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9.4.2.6 Center Aligned Outputs MC9S
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Clock Source 7 Clock Source 5 Clock
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• For channels 0, 1, 4, and 5 the
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Chapter 10 Serial Communication Int
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10.1.4 Block Diagram MC9S12VR Famil
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10.3.2 Register Descriptions MC9S12
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10.3.2.2 SCI Control Register 1 (SC
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10.3.2.3 SCI Alternative Status Reg
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10.3.2.5 SCI Alternative Control Re
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10.3.2.7 SCI Status Register 1 (SCI
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10.3.2.8 SCI Status Register 2 (SCI
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10.4 Functional Description MC9S12V
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10.4.3 Data Format MC9S12VR Family
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10.4.5 Transmitter Bus Clock SBR12:
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10.4.5.5 LIN Transmit Collision Det
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10.4.6.5.2 Fast Data Tolerance MC9S
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10.5.3.1 Description of Interrupt O
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Chapter 11 Serial Peripheral Interf
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SPI Interrupt Request Bus Clock SPI
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11.3.2 Register Descriptions MC9S12
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Table 11-4. SPICR2 Field Descriptio
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5 SPTEF 4 MODF Table 11-8. SPISR Fi
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Receive Shift Register SPIF SPI Dat
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11.4.3.1 Clock Phase and Polarity C
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NOTE Care must be taken when expect
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Page 453 and 454: Chapter 17 64 KByte Flash Module (S
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Table 17-15. FERSTAT Field Descript
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Table 17-19. P-Flash Protection Low
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Scenario FLASH START 0x3_8000 0x3_F
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011 100 101 17.3.2.12 Flash Reserve
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17.3.2.17 Flash Reserved5 Register
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FCCOB Availability Check Clock Divi
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17.4.4.4 P-Flash Commands MC9S12VR
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17.4.6 Flash Command Description MC
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Table 17-35. Erase Verify P-Flash S
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17.4.6.6 Program Once Command Table
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Table 17-44. Erase Flash Block Comm
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17.4.6.13 Set Field Margin Level Co
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Table 17-59. Erase Verify EEPROM Se
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17.4.7 Interrupts MC9S12VR Family R
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Appendix A MCU Electrical Specifica
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A.1.3 Current Injection MC9S12VR Fa
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A.1.5 ESD Protection and Latch-up I
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A.1.6 Operating Conditions MC9S12VR
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VBAT GND Figure A-2. Supply Current
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A.1.8 I/O Characteristics This sect
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Table A-10. CPMU Configuration for
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Appendix B VREG Electrical Specific
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Appendix C ATD Electrical Specifica
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Supply voltage 3.13 V < V DDA < 5.5
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Supply voltage V DDA =5.12 V, -40 o
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Appendix D HSDRV Electrical Specifi
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Appendix E PLL Electrical Specifica
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Appendix F IRC Electrical Specifica
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Appendix G LINPHY Electrical Specif
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Appendix H LSDRV Electrical Specifi
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Appendix I BATS Electrical Specific
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9 D VSENSE Series Resistor Required
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Appendix J PIM Electrical Specifica
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Appendix K SPI Electrical Specifica
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f SCK /f bus 1/2 1/4 5 Figure K-3.
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In Table K-3. the timing characteri
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Appendix L XOSCLCP Electrical Speci
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Appendix M FTMRG Electrical Specifi
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M.1.1 NVM Reliability Parameters Ta
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Appendix N Package Information MC9S
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Appendix O Ordering Information MC9
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Appendix P Detailed Register Addres
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0x001A-0x001B Part ID Registers MC9
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0x0034-0x003F Clock Reset and Power
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0x0070-0x009F Analog to Digital Con
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0x00A0-0x00C7 Pulse Width Modulator
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0x0120 Interrupt Vector Base Regist
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0x0160-0x0167 LIN Physical Layer (L
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0x0240 -0x027F Port Integration Mod
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0x0280-0x02EF Reserved MC9S12VR Fam
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MC9S12VR-Family - Data Sheet - Freescale Semiconductor

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