MC9S08JM60 Datasheet, PDF (14/386 Pages) Freescale Semiconductor, Inc – Microcontrollers

11.6 Interrupts .......................................................................................................................................175
11.6.1 Byte Transfer Interrupt ....................................................................................................175
11.6.2 Address Detect Interrupt .................................................................................................176
11.6.3 Arbitration Lost Interrupt ................................................................................................176
11.7 Initialization/Application Information ..........................................................................................177
Chapter 12
Multi-Purpose Clock Generator (S08MCGV1)
12.1 Introduction ...................................................................................................................................179
12.1.1 Features ...........................................................................................................................181
12.1.2 Modes of Operation ........................................................................................................183
12.2 External Signal Description ..........................................................................................................183
12.3 Register Definition ........................................................................................................................184
12.3.1 MCG Control Register 1 (MCGC1) ...............................................................................184
12.3.2 MCG Control Register 2 (MCGC2) ...............................................................................185
12.3.3 MCG Trim Register (MCGTRM) ...................................................................................186
12.3.4 MCG Status and Control Register (MCGSC) .................................................................187
12.3.5 MCG Control Register 3 (MCGC3) ...............................................................................188
12.4 Functional Description ..................................................................................................................190
12.4.1 Operational Modes ..........................................................................................................190
12.4.2 Mode Switching ..............................................................................................................194
12.4.3 Bus Frequency Divider ...................................................................................................194
12.4.4 Low Power Bit Usage .....................................................................................................195
12.4.5 Internal Reference Clock ................................................................................................195
12.4.6 External Reference Clock ...............................................................................................195
12.4.7 Fixed Frequency Clock ...................................................................................................195
12.5 Initialization / Application Information ........................................................................................196
12.5.1 MCG Module Initialization Sequence ............................................................................196
12.5.2 MCG Mode Switching ....................................................................................................197
12.5.3 Calibrating the Internal Reference Clock (IRC) .............................................................208
Chapter 13
Real-Time Counter (S08RTCV1)
13.1 Introduction ...................................................................................................................................211
13.1.1 Features ...........................................................................................................................213
13.1.2 Modes of Operation ........................................................................................................213
13.1.3 Block Diagram ................................................................................................................214
13.2 External Signal Description ..........................................................................................................214
13.3 Register Definition ........................................................................................................................214
13.3.1 RTC Status and Control Register (RTCSC) ....................................................................215
13.3.2 RTC Counter Register (RTCCNT) ..................................................................................216
13.3.3 RTC Modulo Register (RTCMOD) ................................................................................216
13.4 Functional Description ..................................................................................................................216
13.4.1 RTC Operation Example .................................................................................................217
13.5 Initialization/Application Information ..........................................................................................218
MC9S08JM60 Series Data Sheet, Rev. 2
14
Freescale Semiconductor