MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 10
MC68HC908LJ12CPB
Manufacturer Part Number
MC68HC908LJ12CPB
Description
8-bit microcontroller units
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC68HC908LJ12CPB.pdf
(413 pages)
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MC68HC908LJ12
Freescale Semiconductor
—
Rev. 2.1
8.7
8.8
8.8.1
8.8.2
8.8.3
8.9
8.9.1
8.9.2
8.9.3
9.1
9.2
9.3
9.3.1
9.3.2
9.3.3
9.4
9.4.1
9.4.2
9.4.2.1
9.4.2.2
9.4.2.3
9.4.2.4
9.4.2.5
9.4.2.6
9.5
9.5.1
9.5.2
9.5.3
9.6
9.6.1
9.6.1.1
9.6.1.2
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Acquisition/Lock Time Specifications . . . . . . . . . . . . . . . . . . . 127
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
SIM Bus Clock Control and Generation . . . . . . . . . . . . . . . . . 134
Reset and System Initialization. . . . . . . . . . . . . . . . . . . . . . . . 136
SIM Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Special Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Section 9. System Integration Module (SIM)
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
CGM During Break Interrupts. . . . . . . . . . . . . . . . . . . . . . . 126
Acquisition/Lock Time Definitions. . . . . . . . . . . . . . . . . . . .127
Parametric Influences on Reaction Time . . . . . . . . . . . . . . 127
Choosing a Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Clock Start-up from POR or LVI Reset. . . . . . . . . . . . . . . . 135
Clocks in Stop Mode and Wait Mode . . . . . . . . . . . . . . . . . 136
External Pin Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Active Resets from Internal Sources . . . . . . . . . . . . . . . . . 137
SIM Counter During Power-On Reset . . . . . . . . . . . . . . . . 141
SIM Counter During Stop Mode Recovery . . . . . . . . . . . . . 141
SIM Counter and Reset States. . . . . . . . . . . . . . . . . . . . . . 141
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Computer Operating Properly (COP) Reset. . . . . . . . . . 139
Illegal Opcode Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Low-Voltage Inhibit (LVI) Reset . . . . . . . . . . . . . . . . . . . 140
Monitor Mode Entry Module Reset (MODRST) . . . . . . . 140
Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
SWI Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Table of Contents
Table of Contents
Technical Data
11
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