MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 10
MC68HC908QY2
Manufacturer Part Number
MC68HC908QY2
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908QY2.pdf
(230 pages)
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Table of Contents
10
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
7.7.2
7.7.2.1
7.7.2.2
7.7.2.3
7.7.3
7.7.4
7.7.5
7.8
7.8.1
7.8.2
7.9
7.9.1
7.9.2
7.9.3
8.1
8.2
8.3
8.4
8.4.1
8.4.1.1
8.4.1.2
8.4.2
8.4.3
8.4.4
8.5
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
8.5.6
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
SIM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Oscillator Module Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Interrupt Status Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . . 93
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
SIM Reset Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . . . . 98
Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Internal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
External Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
XTAL Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
RC Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Crystal Amplifier Input Pin (OSC1) . . . . . . . . . . . . . . . . . . .107
Crystal Amplifier Output Pin
Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . . 108
XTAL Oscillator Clock (XTALCLK) . . . . . . . . . . . . . . . . . . .108
RC Oscillator Clock (RCCLK). . . . . . . . . . . . . . . . . . . . . . .109
Internal Oscillator Clock (INTCLK) . . . . . . . . . . . . . . . . . . .109
Interrupt Status Register 1 . . . . . . . . . . . . . . . . . . . . . . . .91
Interrupt Status Register 2 . . . . . . . . . . . . . . . . . . . . . . . .91
Interrupt Status Register 3 . . . . . . . . . . . . . . . . . . . . . . . .92
Internal Oscillator Trimming . . . . . . . . . . . . . . . . . . . . . . 103
Internal to External Clock Switching. . . . . . . . . . . . . . . . 104
(OSC2/PTA4/BUSCLKX4) . . . . . . . . . . . . . . . . . . . . . . 108
Section 8. Oscillator Module (OSC)
Table of Contents
MOTOROLA