MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 8
MC68HC908LJ12CPB
Manufacturer Part Number
MC68HC908LJ12CPB
Description
8-bit microcontroller units
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC68HC908LJ12CPB.pdf
(413 pages)
- Current page: 8 of 413
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MC68HC908LJ12
Freescale Semiconductor
—
Rev. 2.1
6.1
6.2
6.3
6.4
6.4.1
6.4.2
6.4.3
6.4.4
6.4.5
6.5
6.6
6.6.1
6.6.2
6.7
6.8
6.9
7.1
7.2
7.3
7.4
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Internal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Crystal (X-tal) Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Index Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Crystal Amplifier Input Pin (OSC1). . . . . . . . . . . . . . . . . . . . 98
Crystal Amplifier Output Pin (OSC2) . . . . . . . . . . . . . . . . . . 98
Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . . . 98
Internal RC Clock (ICLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
CGM Oscillator Clock (CGMXCLK) . . . . . . . . . . . . . . . . . . . 98
CGM Reference Clock (CGMRCLK) . . . . . . . . . . . . . . . . . . 98
Section 6. Central Processor Unit (CPU)
Table of Contents
Section 7. Oscillator (OSC)
Table of Contents
Technical Data
9
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