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MC68HC908MR24/D
Rev. 3.0
68HC908MR24
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This document contains information on a new product.
Specifications and information herein are subject to change without notice.
N O N - D I S C L O S U R E
A G R E E M E N T
HC08
R E Q U I R E D
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R E Q U I R E D
A G R E E M E N T
N O N - D I S C L O S U R E
Motorola reserves the right to make changes without further notice to
any products herein to improve reliability, function or design. Motorola
does not assume any liability arising out of the application or use of any
product or circuit described herein; neither does it 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.
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MC68HC908MR24
—
Rev. 3.0
MOTOROLA
Advance Information — MC68HC908MR24
List of Sections
Section 1. General Description . . . . . . . . . . . . . . . . . . . . 29
Section 2. Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Section 3. Random-Access Memory (RAM) . . . . . . . . . . 55
Section 4. FLASH Memory . . . . . . . . . . . . . . . . . . . . . . . . 57
Section 5. Configuration Register (CONFIG) . . . . . . . . . 69
Section 6. Central Processor Unit (CPU) . . . . . . . . . . . . 73
Section 7. System Integration Module (SIM) . . . . . . . . . 91
Section 8. Clock Generator Module (CGM) . . . . . . . . . . 109
Section 9. Pulse-Width Modulator
for Motor Control (PWMMC) . . . . . . . . . . . . . . . . . . 135
Section 10. Monitor ROM (MON) . . . . . . . . . . . . . . . . . . 191
Section 11. Timer Interface A (TIMA). . . . . . . . . . . . . . . 203
Section 12. Timer Interface B (TIMB). . . . . . . . . . . . . . . 231
Section 13. Serial Peripheral Interface
Module (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Section 14. Serial Communications Interface
Module (SCI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Section 15. Input/Output (I/O) Ports . . . . . . . . . . . . . . . 321
Section 16. Computer Operating Properly (COP) . . . . 337
Section 17. External Interrupt (IRQ) . . . . . . . . . . . . . . . 343
Section 18. Low-Voltage Inhibit (LVI) . . . . . . . . . . . . . . 349
Section 19. Analog-to-Digital Converter (ADC) . . . . . . 355
Section 20. Power-On Reset (POR) . . . . . . . . . . . . . . . . 371
MC68HC908MR24 — Rev. 3.0
MOTOROLA
List of Sections
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List of Sections
Section 21. Electrical Specifications . . . . . . . . . . . . . . . 373
Section 22. Mechanical Specifications . . . . . . . . . . . . . 385
Section 23. Ordering Information . . . . . . . . . . . . . . . . . 389
Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
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List of Sections
MC68HC908MR24
—
Rev. 3.0
MOTOROLA
Advance Information — MC68HC908MR24
Table of Contents
Section 1. General Description
1.1
1.2
1.3
1.4
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
1.5
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
1.5.1
Power Supply Pins (V
DD
and V
SS
) . . . . . . . . . . . . . . . . . . . .35
1.5.2
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . .35
1.5.3
External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . .36
1.5.4
External Interrupt Pin (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . .36
1.5.5
CGM Power Supply Pins (V
DDA
and V
SSA
) . . . . . . . . . . . . .36
1.5.6
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . .36
1.5.7
Analog Power Supply Pins (V
DDAD
and V
SSAD
) . . . . . . . . . .36
1.5.8
ADC Voltage Decoupling Capacitor Pin (V
REFH
) . . . . . . . . .36
1.5.9
ADC Voltage Reference Low Pin (V
REFL
) . . . . . . . . . . . . . .37
1.5.10 Port A Input/Output (I/O) Pins (PTA7–PTA0) . . . . . . . . . . . .37
1.5.11 Port B I/O Pins (PTB7/ATD7–PTB0/ATD0) . . . . . . . . . . . . .37
1.5.12 Port C I/O Pins (PTC6–PTC2 and
PTC1/ATD9–PTC0/ATD8) . . . . . . . . . . . . . . . . . . . . . . .37
1.5.13 Port D Input-Only Pins (PTD6/IS3–PTD4/IS1
and PTD3/FAULT4–PTD0/FAULT1) . . . . . . . . . . . . . . . .37
1.5.14 PWM Pins (PWM6–PWM1) . . . . . . . . . . . . . . . . . . . . . . . . .38
1.5.15 PWM Ground Pin (PWMGND) . . . . . . . . . . . . . . . . . . . . . . .38
1.5.16 Port E I/O Pins (PTE7/TCH3A–PTE3/TCLKA
and PTE2/TCH1B–PTE0/TCLKB) . . . . . . . . . . . . . . . . . .38
1.5.17 Port F I/O Pins (PTF5/TxD–PTF4/RxD
and PTF3/MISO–PTF0/SPSCK) . . . . . . . . . . . . . . . . . . .38
MC68HC908MR24 — Rev. 3.0
MOTOROLA
Table of Contents
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