s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 109
s908ab32ag0cfue
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s908ab32ag0cfue
Description
M68hc08 Microcontrollers
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Freescale Semiconductor, Inc
Datasheet
1.S908AB32AG0CFUE.pdf
(392 pages)
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8.1 Contents
MC68HC908AB32
Freescale Semiconductor
Technical Data — MC68HC908AB32
—
Rev. 1.1
Section 8. System Integration Module (SIM)
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
8.5
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
8.6.3
8.6.4
8.7
8.7.1
8.7.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
SIM Bus Clock Control and Generation . . . . . . . . . . . . . . . . . 112
Reset and System Initialization. . . . . . . . . . . . . . . . . . . . . . . . 113
SIM Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Clock Start-Up from POR or LVI Reset . . . . . . . . . . . . . . . 113
Clocks in Stop and Wait Modes . . . . . . . . . . . . . . . . . . . . . 113
External Pin Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Active Resets from Internal Sources . . . . . . . . . . . . . . . . . 114
SIM Counter during Power-On Reset. . . . . . . . . . . . . . . . . 118
SIM Counter during Stop Mode Recovery . . . . . . . . . . . . . 118
SIM Counter and Reset States. . . . . . . . . . . . . . . . . . . . . . 118
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . 123
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
System Integration Module (SIM)
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Computer Operating Properly (COP) Reset. . . . . . . . . . 116
Illegal Opcode Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Low-Voltage Inhibit (LVI) Reset . . . . . . . . . . . . . . . . . . . 117
Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
SWI Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Technical Data
109
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