Datasheet
Table Of Contents
- Chapter 1 Device Overview
- Chapter 2 Pins and Connections
- Chapter 3 Modes of Operation
- Chapter 4 Memory
- 4.1 MC9S08DN60 Series Memory Map
- 4.2 Reset and Interrupt Vector Assignments
- 4.3 Register Addresses and Bit Assignments
- 4.4 RAM
- 4.5 Flash and EEPROM
- 4.5.1 Features
- 4.5.2 Program and Erase Times
- 4.5.3 Program and Erase Command Execution
- 4.5.4 Burst Program Execution
- 4.5.5 Sector Erase Abort
- 4.5.6 Access Errors
- 4.5.7 Block Protection
- 4.5.8 Vector Redirection
- 4.5.9 Security
- 4.5.10 EEPROM Mapping
- 4.5.11 Flash and EEPROM Registers and Control Bits
- 4.5.11.1 Flash and EEPROM Clock Divider Register (FCDIV)
- 4.5.11.2 Flash and EEPROM Options Register (FOPT and NVOPT)
- 4.5.11.3 Flash and EEPROM Configuration Register (FCNFG)
- 4.5.11.4 Flash and EEPROM Protection Register (FPROT and NVPROT)
- 4.5.11.5 Flash and EEPROM Status Register (FSTAT)
- 4.5.11.6 Flash and EEPROM Command Register (FCMD)
- Chapter 5 Resets, Interrupts, and General System Control
- 5.1 Introduction
- 5.2 Features
- 5.3 MCU Reset
- 5.4 Computer Operating Properly (COP) Watchdog
- 5.5 Interrupts
- 5.6 Low-Voltage Detect (LVD) System
- 5.7 MCLK Output
- 5.8 Reset, Interrupt, and System Control Registers and Control Bits
- 5.8.1 Interrupt Pin Request Status and Control Register (IRQSC)
- 5.8.2 System Reset Status Register (SRS)
- 5.8.3 System Background Debug Force Reset Register (SBDFR)
- 5.8.4 System Options Register 1 (SOPT1)
- 5.8.5 System Options Register 2 (SOPT2)
- 5.8.6 System Device Identification Register (SDIDH, SDIDL)
- 5.8.7 System Power Management Status and Control 1 Register (SPMSC1)
- 5.8.8 System Power Management Status and Control 2 Register (SPMSC2)
- Chapter 6 Parallel Input/Output Control
- 6.1 Port Data and Data Direction
- 6.2 Pull-up, Slew Rate, and Drive Strength
- 6.3 Pin Interrupts
- 6.4 Pin Behavior in Stop Modes
- 6.5 Parallel I/O and Pin Control Registers
- 6.5.1 Port A Registers
- 6.5.1.1 Port A Data Register (PTAD)
- 6.5.1.2 Port A Data Direction Register (PTADD)
- 6.5.1.3 Port A Pull Enable Register (PTAPE)
- 6.5.1.4 Port A Slew Rate Enable Register (PTASE)
- 6.5.1.5 Port A Drive Strength Selection Register (PTADS)
- 6.5.1.6 Port A Interrupt Status and Control Register (PTASC)
- 6.5.1.7 Port A Interrupt Pin Select Register (PTAPS)
- 6.5.1.8 Port A Interrupt Edge Select Register (PTAES)
- 6.5.2 Port B Registers
- 6.5.2.1 Port B Data Register (PTBD)
- 6.5.2.2 Port B Data Direction Register (PTBDD)
- 6.5.2.3 Port B Pull Enable Register (PTBPE)
- 6.5.2.4 Port B Slew Rate Enable Register (PTBSE)
- 6.5.2.5 Port B Drive Strength Selection Register (PTBDS)
- 6.5.2.6 Port B Interrupt Status and Control Register (PTBSC)
- 6.5.2.7 Port B Interrupt Pin Select Register (PTBPS)
- 6.5.2.8 Port B Interrupt Edge Select Register (PTBES)
- 6.5.3 Port C Registers
- 6.5.4 Port D Registers
- 6.5.4.1 Port D Data Register (PTDD)
- 6.5.4.2 Port D Data Direction Register (PTDDD)
- 6.5.4.3 Port D Pull Enable Register (PTDPE)
- 6.5.4.4 Port D Slew Rate Enable Register (PTDSE)
- 6.5.4.5 Port D Drive Strength Selection Register (PTDDS)
- 6.5.4.6 Port D Interrupt Status and Control Register (PTDSC)
- 6.5.4.7 Port D Interrupt Pin Select Register (PTDPS)
- 6.5.4.8 Port D Interrupt Edge Select Register (PTDES)
- 6.5.5 Port E Registers
- 6.5.6 Port F Registers
- 6.5.7 Port G Registers
- 6.5.1 Port A Registers
- Chapter 7 Central Processor Unit (S08CPUV3)
- 7.1 Introduction
- 7.2 Programmer’s Model and CPU Registers
- 7.3 Addressing Modes
- 7.4 Special Operations
- 7.5 HCS08 Instruction Set Summary
- Chapter 8 Multi-Purpose Clock Generator (S08MCGV1)
- 8.1 Introduction
- 8.2 External Signal Description
- 8.3 Register Definition
- 8.4 Functional Description
- 8.4.1 Operational Modes
- 8.4.1.1 FLL Engaged Internal (FEI)
- 8.4.1.2 FLL Engaged External (FEE)
- 8.4.1.3 FLL Bypassed Internal (FBI)
- 8.4.1.4 FLL Bypassed External (FBE)
- 8.4.1.5 PLL Engaged External (PEE)
- 8.4.1.6 PLL Bypassed External (PBE)
- 8.4.1.7 Bypassed Low Power Internal (BLPI)
- 8.4.1.8 Bypassed Low Power External (BLPE)
- 8.4.1.9 Stop
- 8.4.2 Mode Switching
- 8.4.3 Bus Frequency Divider
- 8.4.4 Low Power Bit Usage
- 8.4.5 Internal Reference Clock
- 8.4.6 External Reference Clock
- 8.4.7 Fixed Frequency Clock
- 8.4.1 Operational Modes
- 8.5 Initialization / Application Information
- 8.5.1 MCG Module Initialization Sequence
- 8.5.2 MCG Mode Switching
- 8.5.2.1 Example # 1: Moving from FEI to PEE Mode: External Crystal = 4 MHz, Bus Frequency = 8 MHz
- 8.5.2.2 Example # 2: Moving from PEE to BLPI Mode: External Crystal = 4 MHz, Bus Frequency =16 kHz
- 8.5.2.3 Example #3: Moving from BLPI to FEE Mode: External Crystal = 4 MHz, Bus Frequency = 16 MHz
- 8.5.2.4 Example # 4: Moving from FEI to PEE Mode: External Crystal = 8 MHz, Bus Frequency = 8 MHz
- 8.5.3 Calibrating the Internal Reference Clock (IRC)
- Chapter 9 Analog Comparator (S08ACMPV3)
- Chapter 10 Analog-to-Digital Converter (S08ADC12V1)
- 10.1 Introduction
- 10.2 External Signal Description
- 10.3 Register Definition
- 10.3.1 Status and Control Register 1 (ADCSC1)
- 10.3.2 Status and Control Register 2 (ADCSC2)
- 10.3.3 Data Result High Register (ADCRH)
- 10.3.4 Data Result Low Register (ADCRL)
- 10.3.5 Compare Value High Register (ADCCVH)
- 10.3.6 Compare Value Low Register (ADCCVL)
- 10.3.7 Configuration Register (ADCCFG)
- 10.3.8 Pin Control 1 Register (APCTL1)
- 10.3.9 Pin Control 2 Register (APCTL2)
- 10.3.10 Pin Control 3 Register (APCTL3)
- 10.4 Functional Description
- 10.5 Initialization Information
- 10.6 Application Information
- Chapter 11 Inter-Integrated Circuit (S08IICV2)
- Chapter 12 Serial Peripheral Interface (S08SPIV3)
- Chapter 13 Serial Communications Interface (S08SCIV4)
- Chapter 14 Real-Time Counter (S08RTCV1)
- Chapter 15 Timer Pulse-Width Modulator (S08TPMV3)
- Chapter 16 Development Support
- 16.1 Introduction
- 16.2 Background Debug Controller (BDC)
- 16.3 On-Chip Debug System (DBG)
- 16.4 Register Definition
- 16.4.1 BDC Registers and Control Bits
- 16.4.2 System Background Debug Force Reset Register (SBDFR)
- 16.4.3 DBG Registers and Control Bits
- 16.4.3.1 Debug Comparator A High Register (DBGCAH)
- 16.4.3.2 Debug Comparator A Low Register (DBGCAL)
- 16.4.3.3 Debug Comparator B High Register (DBGCBH)
- 16.4.3.4 Debug Comparator B Low Register (DBGCBL)
- 16.4.3.5 Debug FIFO High Register (DBGFH)
- 16.4.3.6 Debug FIFO Low Register (DBGFL)
- 16.4.3.7 Debug Control Register (DBGC)
- 16.4.3.8 Debug Trigger Register (DBGT)
- 16.4.3.9 Debug Status Register (DBGS)
- Appendix A Electrical Characteristics
- A.1 Introduction
- A.2 Parameter Classification
- A.3 Absolute Maximum Ratings
- A.4 Thermal Characteristics
- A.5 ESD Protection and Latch-Up Immunity
- A.6 DC Characteristics
- A.7 Supply Current Characteristics
- A.8 Analog Comparator (ACMP) Electricals
- A.9 ADC Characteristics
- A.10 External Oscillator (XOSC) Characteristics
- A.11 MCG Specifications
- A.12 AC Characteristics
- A.13 Flash and EEPROM
- A.14 EMC Performance
- Appendix B Timer Pulse-Width Modulator (TPMV2)
- Appendix C Ordering Information and Mechanical Drawings
Chapter 8 Multi-Purpose Clock Generator (S08MCGV1)
MC9S08DN60 Series Data Sheet, Rev 3
146 Freescale Semiconductor
8.4.7 Fixed Frequency Clock
The MCG presents the divided reference clock as MCGFFCLK for use as an additional clock source. The
MCGFFCLK frequency must be no more than 1/4 of the MCGOUT frequency to be valid. Because of this
requirement, the MCGFFCLK is not valid in bypass modes for the following combinations of BDIV and
RDIV values:
• BDIV=00 (divide by 1), RDIV < 010
• BDIV=01 (divide by 2), RDIV < 011
When MCGFFCLK is valid then MCGFFCLKVALID is set to 1. When MCGFFCLK is not valid then
MCGFFCLKVALID is set to 0.
8.5 Initialization / Application Information
This section describes how to initialize and configure the MCG module in application. The following
sections include examples on how to initialize the MCG and properly switch between the various available
modes.
8.5.1 MCG Module Initialization Sequence
The MCG comes out of reset configured for FEI mode with the BDIV set for divide-by-2. The internal
reference will stabilize in t
irefst
microseconds before the FLL can acquire lock. As soon as the internal
reference is stable, the FLL will acquire lock in t
fll_lock
milliseconds.
Upon POR, the internal reference will require trimming to guarantee an accurate clock. Freescale
recommends using FLASH location 0xFFAE for storing the fine trim bit, FTRIM in the MCGSC register,
and 0xFFAF for storing the 8-bit trim value in the MCGTRM register. The MCU will not automatically
copy the values in these FLASH locations to the respective registers. Therefore, user code must copy these
values from FLASH to the registers.
NOTE
The BDIV value should not be changed to divide-by-1 without first
trimming the internal reference. Failure to do so could result in the MCU
running out of specification.
8.5.1.1 Initializing the MCG
Because the MCG comes out of reset in FEI mode, the only MCG modes which can be directly switched
to upon reset are FEE, FBE, and FBI modes (see Figure 8-8). Reaching any of the other modes requires
first configuring the MCG for one of these three initial modes. Care must be taken to check relevant status
bits in the MCGSC register reflecting all configuration changes within each mode.
To change from FEI mode to FEE or FBE modes, follow this procedure:
1. Enable the external clock source by setting the appropriate bits in MCGC2.
2. Write to MCGC1 to select the clock mode.