MC68HC908GR8
MC68HC908GR4
Technical Data — Rev 4.0
Motorola reserves the right to make changes without further notice to any products
herein. Motorola makes no warranty, representation or guarantee regarding the
suitability of its products for any particular purpose, nor does Motorola assume any
liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation consequential or incidental
damages. "Typical" parameters which may be provided in Motorola data sheets and/or
specifications can and do vary in different applications and actual performance may
vary over time. All operating parameters, including "Typicals" must be validated for
each customer application by customer’s technical experts. Motorola does not convey
any license under its patent rights nor the rights of others. Motorola products are not
designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life,
or for any other application in which the failure of the Motorola product could create a
situation where personal injury or death may occur. Should Buyer purchase or use
Motorola products for any such unintended or unauthorized application, Buyer shall
indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and
distributors harmless against all claims, costs, damages, and expenses, and
reasonable attorney fees arising out of, directly or indirectly, any claim of personal
injury or death associated with such unintended or unauthorized use, even if such claim
alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Motorola and
are registered trademarks of Motorola, Inc.
DigitalDNA is a trademark of Motorola, Inc.
© Motorola, Inc., 2002
MC68HC908GR8 — Rev 4.0
MOTOROLA
Technical Data
3
Technical Data — MC68HC908GR8
List of Paragraphs
List of Paragraphs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Section 1. General Description . . . . . . . . . . . . . . . . . . . . 25
Section 2. Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Section 3. Low Power Modes. . . . . . . . . . . . . . . . . . . . . . 49
Section 4. Resets and Interrupts . . . . . . . . . . . . . . . . . . . 61
Section 5. Analog-to-Digital Converter (ADC) . . . . . . . . 79
Section 6. Break Module (BRK) . . . . . . . . . . . . . . . . . . . . 91
Section 7. Clock Generator Module (CGMC) . . . . . . . . . 99
Section 8. Configuration Register (CONFIG) . . . . . . . . 129
Section 9. Computer Operating Properly (COP) . . . . . 133
Section 10. Central Processing Unit (CPU) . . . . . . . . . 139
Section 11. Flash Memory . . . . . . . . . . . . . . . . . . . . . . . 157
Section 12. External Interrupt (IRQ) . . . . . . . . . . . . . . . 167
Section 13. Keyboard Interrupt (KBI) . . . . . . . . . . . . . . 175
Section 14. Low-Voltage Inhibit (LVI) . . . . . . . . . . . . . . 183
Section 15. Monitor ROM (MON) . . . . . . . . . . . . . . . . . . 189
Section 16. Input/Output Ports (I/O) . . . . . . . . . . . . . . . 205
MC68HC908GR8 — Rev 4.0
MOTOROLA
List of Paragraphs
Technical Data
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