mc9s08gt32a Freescale Semiconductor, Inc, mc9s08gt32a Datasheet - Page 10

• Manufacturer Part Number: mc9s08gt32a
• Description: Hcs08 Microcontrollers 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

Section Number
7.3
7.4
7.5
8.1
8.2
10
Functional Description ..................................................................................................................107
Initialization/Application Information ..........................................................................................113
ICG Registers and Control Bits .....................................................................................................121
Introduction ...................................................................................................................................127
Programmer’s Model and CPU Registers .....................................................................................128
7.2.3
7.2.4
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
7.3.9
7.3.10 High Gain Oscillator ......................................................................................................113
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
8.1.1
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
External Clock Connections ..........................................................................................106
External Crystal/Resonator Connections .......................................................................106
Off Mode (Off) ..............................................................................................................107
Self-Clocked Mode (SCM) ............................................................................................107
FLL Engaged, Internal Clock (FEI) Mode ....................................................................109
FLL Bypassed, External Clock (FBE) Mode ................................................................109
FLL Engaged, External Clock (FEE) Mode ..................................................................109
FLL Lock and Loss-of-Lock Detection .........................................................................110
FLL Loss-of-Clock Detection ........................................................................................111
Clock Mode Requirements ............................................................................................112
Fixed Frequency Clock ..................................................................................................113
Introduction ....................................................................................................................113
Example #1: External Crystal = 32 kHz, Bus Frequency = 4.19 MHz .........................116
Example #2: External Crystal = 4 MHz, Bus Frequency = 20 MHz .............................117
Example #3: No External Crystal Connection, 5.4 MHz Bus Frequency .....................119
Example #4: Internal Clock Generator Trim .................................................................120
ICG Control Register 1 (ICGC1) ...................................................................................122
ICG Control Register 2 (ICGC2) ...................................................................................123
ICG
ICG Status Register 2 (ICGS2) ......................................................................................125
ICG Filter Registers (ICGFLTU, ICGFLTL) .................................................................125
ICG Trim Register (ICGTRM) ......................................................................................126
Features ..........................................................................................................................127
Accumulator (A) ............................................................................................................128
Index Register (H:X) .....................................................................................................128
Stack Pointer (SP) ..........................................................................................................129
Program Counter (PC) ...................................................................................................129
Condition Code Register (CCR) ....................................................................................129
7.3.1.1
7.3.1.2
7.3.1.3
7.3.3.1
7.3.3.2
7.3.5.1
7.3.5.2
Status Register 1 (ICGS1) ........................................................................ 124
OSCSTEN Bit Set .........................................................................................107
Stop/Off Mode Recovery ..............................................................................107
FLL Engaged Internal Unlocked ..................................................................109
FLL Engaged Internal Locked ......................................................................109
FLL Engaged External Unlocked .................................................................110
FLL Engaged External Locked .....................................................................110
BDM Active .................................................................................................107
Central Processor Unit (S08CPUV2)
MC9S08GB60A Data Sheet, Rev. 1.02
Chapter 8
Title
Freescale Semiconductor
Page