mc68hc908mr8 Freescale Semiconductor, Inc, mc68hc908mr8 Datasheet - Page 9
mc68hc908mr8
Manufacturer Part Number
mc68hc908mr8
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908MR8.pdf
(372 pages)
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MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
6.4.4
6.4.5
6.5
6.6
6.6.1
6.6.2
6.7
6.8
7.1
7.2
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
7.4.2.1
7.4.2.2
7.4.2.3
7.4.2.4
7.4.2.5
7.5
7.5.1
7.5.2
7.6
7.6.1
7.6.1.1
7.6.1.2
7.6.2
7.6.3
7.7
7.7.1
Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
SIM Bus Clock Control and Generation . . . . . . . . . . . . . . . . . . 93
Reset and System Initialization. . . . . . . . . . . . . . . . . . . . . . . . . 94
Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Low-Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
SIM Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Section 7. System Integration Module (SIM)
Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Clock Startup from POR or LVI Reset . . . . . . . . . . . . . . . . . 93
Clocks in Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
External Pin Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Active Resets from Internal Sources . . . . . . . . . . . . . . . . . . 95
SIM Counter During Power-On Reset . . . . . . . . . . . . . . . . . 99
SIM Counter and Reset States. . . . . . . . . . . . . . . . . . . . . . . 99
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . 103
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Power-On Reset (POR) . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Computer Operating Properly (COP) Reset. . . . . . . . . . . 97
Illegal Opcode Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Low-Voltage Inhibit (LVI) Reset . . . . . . . . . . . . . . . . . . . . 98
Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
SWI Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Table of Contents
Table of Contents
Technical Data
9
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