MC9S08AC16_08 Datasheet, PDF (10/344 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

Section Number
Title
Page
4.2 Register Addresses and Bit Assignments ........................................................................................43
4.3 RAM ................................................................................................................................................49
4.4 FLASH ............................................................................................................................................50
4.4.1 Features .............................................................................................................................50
4.4.2 Program and Erase Times .................................................................................................50
4.4.3 Program and Erase Command Execution .........................................................................51
4.4.4 Burst Program Execution ..................................................................................................52
4.4.5 Access Errors ....................................................................................................................54
4.4.6 FLASH Block Protection ..................................................................................................54
4.4.7 Vector Redirection ............................................................................................................55
4.5 Security ............................................................................................................................................55
4.6 FLASH Registers and Control Bits .................................................................................................57
4.6.1 FLASH Clock Divider Register (FCDIV) ........................................................................57
4.6.2 FLASH Options Register (FOPT and NVOPT) ................................................................58
4.6.3 FLASH Configuration Register (FCNFG) ........................................................................59
4.6.4 FLASH Protection Register (FPROT and NVPROT) .......................................................60
4.6.5 FLASH Status Register (FSTAT) ......................................................................................60
4.6.6 FLASH Command Register (FCMD) ...............................................................................62
Chapter 5
Resets, Interrupts, and System Configuration
5.1 Introduction .....................................................................................................................................63
5.2 Features ...........................................................................................................................................63
5.3 MCU Reset ......................................................................................................................................63
5.4 Computer Operating Properly (COP) Watchdog .............................................................................64
5.5 Interrupts .........................................................................................................................................65
5.5.1 Interrupt Stack Frame .......................................................................................................66
5.5.2 External Interrupt Request (IRQ) Pin ...............................................................................66
5.5.3 Interrupt Vectors, Sources, and Local Masks ....................................................................67
5.6 Low-Voltage Detect (LVD) System ................................................................................................69
5.6.1 Power-On Reset Operation ...............................................................................................69
5.6.2 LVD Reset Operation ........................................................................................................69
5.6.3 LVD Interrupt Operation ...................................................................................................69
5.6.4 Low-Voltage Warning (LVW) ...........................................................................................69
5.7 Real-Time Interrupt (RTI) ...............................................................................................................69
5.8 MCLK Output .................................................................................................................................70
5.9 Reset, Interrupt, and System Control Registers and Control Bits ...................................................70
5.9.1 Interrupt Pin Request Status and Control Register (IRQSC) ............................................71
5.9.2 System Reset Status Register (SRS) .................................................................................72
5.9.3 System Background Debug Force Reset Register (SBDFR) ............................................73
5.9.4 System Options Register (SOPT) .....................................................................................74
5.9.5 System MCLK Control Register (SMCLK) .....................................................................75
MC9S08AC16 Series Data Sheet, Rev. 6
10
Freescale Semiconductor