Printed Circuit Board Layout Proposal | Motorola MC9S12DJ128B

MC9S12DT128B Device User Guide — V01.07

Section 22 Printed Circuit Board Layout Proposal

Table 22-1 Suggested External Component Values

	Component	Purpose	Type	Value

	C1	VDD1 ﬁlter cap	ceramic X7R	100 … 220nF

	C2	VDD2 ﬁlter cap	ceramic X7R	100 … 220nF

	C3	VDDA ﬁlter cap	ceramic X7R	100nF

	C4	VDDR ﬁlter cap	X7R/tantalum	>= 100nF

	C5	VDDPLL ﬁlter cap	ceramic X7R	100nF

	C6	VDDX ﬁlter cap	X7R/tantalum	>= 100nF

	C7	OSC load cap

	C8	OSC load cap

	C9 / CS	PLL loop ﬁlter cap	See PLL speciﬁcation chapter

	C10 / CP	PLL loop ﬁlter cap
	C10 / CP	PLL loop ﬁlter cap

	C11 / CDC	DC cutoff cap	Colpitts mode only, if recommended by
	C11 / CDC	DC cutoff cap	quartz manufacturer
			quartz manufacturer

	R1 / R	PLL loop ﬁlter res	See PLL Speciﬁcation chapter

	R2 / RB		Pierce mode only

	R3 / RS
	R3 / RS

	Q1	Quartz

The PCB must be carefully laid out to ensure proper operation of the voltage regulator as well as of the MCU itself. The following rules must be observed:

•Every supply pair must be decoupled by a ceramic capacitor connected as near as possible to the corresponding pins (C1 – C6).

•Central point of the ground star should be the VSSR pin.

•Use low ohmic low inductance connections between VSS1, VSS2 and VSSR.

•VSSPLL must be directly connected to VSSR.

•Keep traces of VSSPLL, EXTAL and XTAL as short as possible and occupied board area for C7, C8, C11 and Q1 as small as possible.

•Do not place other signals or supplies underneath area occupied by C7, C8, C10 and Q1 and the connection area to the MCU.

•Central power input should be fed in at the VDDA/VSSA pins.

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Motorola MC9S12DJ128B, MC9S12DT128B manual Printed Circuit Board Layout Proposal, Suggested External Component Values

Contents

Original Release Date 18 June Revised 16 Aug Motorola, Inc Revision History Table of Contents MC9S12DT128B Device User Guide Modes of Operation Resets and InterruptsSystem Clock Description HCS12 Core Block Description Clock and Reset Generator CRG Block Description Appendix B Package Information MC9S12DT128B Device User Guide List of Figures Order Partnumber Example MC9S12DT128B Device User Guide List of Tables MC9S12DT128B Device User Guide Preface Derivative Differences1Modules MC9S12DT128B MC9S12DG128B MC9S12DJ128B MC9S12DB128B Document References User Guide Version Document Order Number Features IntroductionOverview MC9S12DT128B Device User Guide Modes of Operation Block Diagram 1shows a block diagram of the MC9S12DT128B device MC9S12DT128B Block Diagram Address Module Size Bytes Device Memory MapDevice Memory Map Core MEMSIZ, IRQ, Hprio MC9S12DT128B Memory Map Detailed Register Map $0000 $000F Mebi map 1 of 3 Core User Guide$0010 $0014 MMC map 1 of 4 Core User Guide $001E $001E Mebi map 2 of 3 Core User Guide $0015 $0016 INT map 1 of 2 Core User Guide$0017 $0017 MMC map 2 of 4 Core User Guide $001F $001F INT map 2 of 2 Core User Guide $0030 $0031 MMC map 4 of 4 Core User Guide $0020 $0027Reserved$0028 $002F BKP Core User Guide $0032 $0033 Mebi map 3 of 3 Core User Guide $0034 $003F CRG Clock and Reset Generator $0040 $007F ECT Enhanced Capture Timer 16 Bit 8 Channels TCTL4 TCTL3EDG7A EDG6B EDG6A EDG5B EDG5A EDG4B EDG4A EDG3A EDG2B EDG2A EDG1B EDG1A EDG0B EDG0A Flmc McctlMczi Modmc Rdmcl Mcen MCPR1 MCPR0 Mcflg Fifo FRZ1 FRZ0 AscifAdpu Affc Awai Etrigle Etrigp Ascie SRES8 SMP1 SMP0 $00A0 $00C7 PWM Pulse Width Modulator 8 Bit 8 Channel Pwmscntb PwmsclbPwmscnta PWMCNT0 SCI0 Asynchronous Serial Interface $00D0 $00D7 SCI1 Asynchronous Serial Interface SPI0 Serial Peripheral Interface $00E0 $00E7 IIC Inter IC Bus $00E8 $00EF Bdlc Byte Level Data Link Controller J1850 $00F0 $00F7 SPI1 Serial Peripheral Interface$00F8 $00FFReserved $0100 $010F Flash Control Register fts128k2 $0110 $011B Eeprom Control Register eets2k ATD1TEST0 $011C $011F Reserved for RAM Control RegisterEaddrlo ATD1TEST1 $0140 $017F CAN0 Motorola Scalable can Mscan CAN0TIER CAN0TFLGTXE2 TXE1 TXE0 TXEIE2 TXEIE1 TXEIE0 $0180 $01BF CAN1 Motorola Scalable can Mscan $01C0 $01FFReserved $0200 $023FReserved $0240 $027F PIM Port Integration Module Perp PtipPTIP7 PTIP6 PTIP5 PTIP4 PTIP3 PTIP2 PTIP1 PTIP0 PERP7 $0280 $02BF CAN4 Motorola Scalable can Mscan $02C0 $02FFReserved $0300 $035F Byteﬂight BFTDATA0 BftidentBftlen Bfrident Assigned Part ID Numbers Part ID Assignments$0360 $03FFReserved Memory size registers MC9S12DT128B Device User Guide Signal Description Device Pinout PAD14/AN14 IOC0/PT0 Pin Name Signal Properties SummarySignal Properties Description PE1 IRQ Vddr PM2 Rxbf RXCAN1 RXCAN0 MISO0 Vddx PM3 Txbf TXCAN1 TXCAN0 SS0 VddxPpsm SPI0 Perm CAN1, CAN0, Miso Reset External Reset Pin Detailed Signal DescriptionsEXTAL, Xtal Oscillator Pins Test Test Pin 10 PA70 / ADDR158 / DATA158 Port a I/O Pins 7 PAD148 / AN160 Port AD Input Pins9 PAD60 / AN060 Port AD Input Pins 11 PB70 / ADDR70 / DATA70 Port B I/O Pins Colpitts Oscillator Connections PE7=1 Pierce Oscillator Connections PE7=0 15 PE4 / Eclk Port E I/O Pin 13 PE6 / Modb / IPIPE1 Port E I/O Pin14 PE5 / Moda / IPIPE0 Port E I/O Pin 16 PE3 / Lstrb / Taglo Port E I/O Pin 23 PH4 / KWH4 Port H I/O Pin 21 PH6 / KWH6 Port H I/O Pin22 PH5 / KWH5 Port H I/O Pin 24 PH3 / KWH3 / SS1 Port H I/O Pin 29 PJ6 / KWJ6 / RXCAN4 / SDA Port J I/O Pin 30 PJ10 / KWJ10 Port J I/O Pins32 PK50 / XADDR1914 Port K I/O Pins 31 PK7 / ECS / Romctl Port K I/O Pin 38 PM2 / Rxbf / RXCAN1 / RXCAN0 / MISO0 Port M I/O Pin 36 PM4 / Bfpsyn / RXCAN0 / RXCAN4/ MOSI0 Port M I/O Pin37 PM3 / Txbf / TXCAN1 / TXCAN0 / SS0 Port M I/O Pin 39 PM1 / TXCAN0 / TXB Port M I/O Pin 45 PP3 / KWP3 / PWM3 / SS1 Port P I/O Pin 43 PP5 / KWP5 / PWM5 Port P I/O Pin44 PP4 / KWP4 / PWM4 Port P I/O Pin 46 PP2 / KWP2 / PWM2 / SCK1 Port P I/O Pin Power Supply Pins VDDX,VSSX Power & Ground Pins for I/O Drivers 3 VDD1, VDD2, VSS1, VSS2 Core Power PinsVssa VDDPLL, Vsspll Power Supply Pins for PLL VDDA, Vssa Power Supply Pins for ATD and Vreg5 VRH, VRL ATD Reference Voltage Input Pins Vregen On Chip Voltage Regulator Enable MC9S12DT128B Device User Guide System Clock Description Clock Connections MC9S12DT128B Device User Guide Modes of Operation Chip Configuration SummaryMode Selection Clock Selection Based on PE7 Security Securing the MicrocontrollerOperation of the Secured Microcontroller Low Power Modes MC9S12DT128B Device User Guide Vector Table Resets and InterruptsVectors Interrupt Vector Locations Effects of Reset 1 I/O pins Memory MC9S12DT128B Device User Guide HCS12 Core Block Description Clock and Reset Generator CRG Block DescriptionEnhanced Capture Timer ECT Block Description Analog to Digital Converter ATD Block Description J1850 Bdlc Block Description DescriptionSerial Peripheral Interface SPI Block Description Byteflight BF Block Description Port Integration Module PIM Block Description RAM Block DescriptionMscan Block Description Voltage Regulator Vreg Block Description Printed Circuit Board Layout Proposal Suggested External Component ValuesComponent Purpose Type Value Recommended PCB Layout for 112LQFP Colpitts Oscillator Recommended PCB Layout for 80QFP Colpitts Oscillator Recommended PCB Layout for 112LQFP Pierce Oscillator Recommended PCB Layout for 80QFP Pierce Oscillator General Appendix a Electrical CharacteristicsPower Supply Parameter Classification Pins Current Injection ESD Protection and Latch-up Immunity Num Rating Symbol Min Max UnitAbsolute Maximum Ratings Table A-1 Absolute Maximum Ratings1 Operating Conditions Table A-3 ESD and Latch-Up Protection CharacteristicsModel Description Symbol Value Unit Table A-2 ESD and Latch-up Test Conditions Power Dissipation and Thermal Characteristics Rating Symbol Min Typ Max UnitTable A-4 Operating Conditions Pint = IDD ⋅ VDD + Iddpll ⋅ Vddpll + Idda ⋅ Vdda 9 I/O Characteristics Table A-5 Thermal Package Characteristics1Num Rating Symbol Min Typ Max Unit Table A-6 5V I/O Characteristics Supply Currents Measurement ConditionsAdditional Remarks Table A-7 Supply Current Characteristics Table A-8 ATD Operating Characteristics ATD CharacteristicsATD Operating Characteristics Factors influencing accuracy Table A-9 ATD Electrical Characteristics Source capacitanceCurrent injection ATD accuracy Table A-10 ATD Conversion Performance Figure A-1 ATD Accuracy Definitions Single Word Programming NVM, Flash and EepromNVM timing Burst Programming Mass Erase Table A-11 NVM Timing CharacteristicsSector Erase Blank Check Table A-12 NVM Reliability Characteristics NVM ReliabilityNum Rating Cycles Data Retention Unit Lifetime 100 Voltage Regulator Table A-13 Voltage Regulator Recommended Load Capacitances 102 Reset, Oscillator and PLL Startup Pseudo Stop and Wait Recovery Table A-15 Oscillator CharacteristicsOscillator Phase Locked Loop XFC PinXFC Component Selection ⋅ synr + Jitter Information = max ⎜ ⋅ t nom Table A-16 PLL Characteristics Table A-17 Mscan Wake-up Pulse Characteristics Mscan 110 Master Mode Mosi Port Data LSB Master LSB OUT Slave Mode Table A-19 SPI Slave Mode Timing Characteristics External Bus Timing General Muxed Bus Timing Eclk PE4 PA, PBECS PK7 PE2 Lstrb PE3 Noacc PE7 PIPO0 Table A-20 Expanded Bus Timing Characteristics Pweh 118 Appendix B Package Information 112-pin Lqfp mechanical dimensions case no 112-pin Lqfp package 80-pin QFP Mechanical Dimensions case no B 80-pin QFP package 122 User Guide End Sheet 124