mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 93

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mc68hc908jb8

Manufacturer Part Number
mc68hc908jb8
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
8.1 Contents
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
8.2
8.3
8.3.1
8.3.2
8.3.3
8.4
8.4.1
8.4.2
8.4.2.1
8.4.2.2
8.4.2.3
8.4.2.4
8.4.2.5
8.4.2.6
8.4.2.7
8.5
8.5.1
8.5.2
8.5.3
8.6
8.6.1
8.6.1.1
8.6.1.2
8.6.2
8.6.2.1
8.6.3
8.6.4
8.6.5
Section 8. System Integration Module (SIM)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
SIM Bus Clock Control and Generation . . . . . . . . . . . . . . . . . . 96
Reset and System Initialization. . . . . . . . . . . . . . . . . . . . . . . . . 97
SIM Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Clock Startup from POR or LVI Reset . . . . . . . . . . . . . . . . . 97
Clocks in Stop Mode and Wait Mode . . . . . . . . . . . . . . . . . . 97
External Pin Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Active Resets from Internal Sources . . . . . . . . . . . . . . . . . . 99
SIM Counter During Power-On Reset . . . . . . . . . . . . . . . . 103
SIM Counter During Stop Mode Recovery . . . . . . . . . . . . . 104
SIM Counter and Reset States. . . . . . . . . . . . . . . . . . . . . . 104
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Interrupt Status Registers. . . . . . . . . . . . . . . . . . . . . . . . . . 108
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . 110
System Integration Module (SIM)
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Computer Operating Properly (COP) Reset. . . . . . . . . . 101
Illegal Opcode Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Low-Voltage Inhibit (LVI) Reset . . . . . . . . . . . . . . . . . . . 102
Universal Serial Bus Reset . . . . . . . . . . . . . . . . . . . . . . 102
Registers Values After Different Resets. . . . . . . . . . . . . 102
Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
SWI Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Interrupt Status Register 1 . . . . . . . . . . . . . . . . . . . . . . . 109
Technical Data
93

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