MOTOROLA MC68HC908GR8, MC68HC908GR4 Technical data
M68TC08GR8FA32
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
MC68HC908GR8
MC68HC908GR4
Technical Data
M68HC08
Microcontrollers
MC68HC908GR8/D
Rev. 4, 6/2002
WWW.MOTOROLA.COM/SEMICONDUCTORS
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
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 |
Technical Data |
|
|
|
|
|
|
|
MOTOROLA |
|
3 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Technical Data |
MC68HC908GR8 — Rev 4.0 |
|
|
4 |
MOTOROLA |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
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 |
Technical Data |
|
|
|
MOTOROLA |
List of Paragraphs |
5 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
List of Paragraphs
Section 17. RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Section 18. Serial Communications Interface (SCI) . . . 231
Section 19. System Integration Module (SIM) . . . . . . . 271
Section 20. Serial Peripheral Interface (SPI). . . . . . . . . 297
Section 21. Timebase Module (TBM) . . . . . . . . . . . . . . . 329
Section 22. Timer Interface Module (TIM) . . . . . . . . . . . 335
Section 23. Electrical Specifications . . . . . . . . . . . . . . . 361
Section 24. Mechanical Specifications . . . . . . . . . . . . . 387
Section 25. Ordering Information . . . . . . . . . . . . . . . . . 391
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
6 |
List of Paragraphs |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Technical Data — MC68HC908GR8
Table of Contents
List of Paragraphs
Table of Contents
List of Tables
List of Figures
Section 1. General Description
1.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1.5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
1.6 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Section 2. Memory Map
2.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
2.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
2.3 Unimplemented Memory Locations . . . . . . . . . . . . . . . . . . . . . .35
2.4 Reserved Memory Locations . . . . . . . . . . . . . . . . . . . . . . . . . .36
2.5 Input/Output (I/O) Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
Table of Contents |
7 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
Section 3. Low Power Modes
3.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
3.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
3.3 Analog-to-Digital Converter (ADC) . . . . . . . . . . . . . . . . . . . . . .50
3.4 Break Module (BRK). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
3.5 Central Processor Unit (CPU). . . . . . . . . . . . . . . . . . . . . . . . . .51
3.6 Clock Generator Module (CGM) . . . . . . . . . . . . . . . . . . . . . . . .52
3.7 Computer Operating Properly Module (COP). . . . . . . . . . . . . .52
3.8 External Interrupt Module (IRQ) . . . . . . . . . . . . . . . . . . . . . . . .53
3.9 Keyboard Interrupt Module (KBI) . . . . . . . . . . . . . . . . . . . . . . .53 3.10 Low-Voltage Inhibit Module (LVI) . . . . . . . . . . . . . . . . . . . . . . .54 3.11 Serial Communications Interface Module (SCI) . . . . . . . . . . . .54 3.12 Serial Peripheral Interface Module (SPI) . . . . . . . . . . . . . . . . .55 3.13 Timer Interface Module (TIM1 and TIM2) . . . . . . . . . . . . . . . . .55 3.14 Timebase Module (TBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 3.15 Exiting Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 3.16 Exiting Stop Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
|
Section 4. Resets and Interrupts |
|
|
4.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . |
. . .61 |
4.2 |
Introduction . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . |
. . .61 |
4.3 |
Resets. . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . |
. . .61 |
4.4 |
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. . .66 |
|
Section 5. Analog-to-Digital Converter (ADC) |
|
|
5.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. . .79 |
5.2 |
Introduction . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. . .79 |
Technical Data |
|
MC68HC908GR8 — |
Rev 4.0 |
8 |
Table of Contents |
MOTOROLA |
|
|
For More Information On This Product, |
|
|
|
Go to: www.freescale.com |
|
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
5.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
5.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
5.5 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
5.6 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
5.7 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
5.8 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Section 6. Break Module (BRK)
6.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
6.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
6.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
6.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
6.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
6.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Section 7. Clock Generator Module (CGMC)
7.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
7.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
7.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
7.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
7.5 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
7.6 CGMC Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
7.7 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
7.8 Special Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
7.9 Acquisition/Lock Time Specifications . . . . . . . . . . . . . . . . . . .125
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
Table of Contents |
9 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
Section 8. Configuration Register (CONFIG)
8.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
8.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
8.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Section 9. Computer Operating Properly (COP)
9.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
9.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
9.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
9.4 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
9.5 COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
9.6 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
9.7 Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
9.8 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
9.9 COP Module During Break Mode . . . . . . . . . . . . . . . . . . . . . .137
Section 10. Central Processing Unit (CPU)
10.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139 10.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139 10.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139 10.4 CPU registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
10.5 Arithmetic/logic unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . .145 10.6 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145 10.7 CPU during break interrupts . . . . . . . . . . . . . . . . . . . . . . . . . .146 10.8 Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . .147 10.9 Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
10 |
Table of Contents |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
Section 11. Flash Memory
11.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
11.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
11.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
11.4 FLASH Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159
11.5 FLASH Page Erase Operation . . . . . . . . . . . . . . . . . . . . . . . .160
11.6 FLASH Mass Erase Operation . . . . . . . . . . . . . . . . . . . . . . . .161
11.7 FLASH Program/Read Operation . . . . . . . . . . . . . . . . . . . . . .162
11.8 FLASH Block Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163
11.9 Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
11.10 STOP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
Section 12. External Interrupt (IRQ)
12.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167
12.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167
12.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167
12.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168
12.5 IRQ1 Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
12.6 IRQ Module During Break Interrupts . . . . . . . . . . . . . . . . . . .171
12.7 IRQ Status and Control Register . . . . . . . . . . . . . . . . . . . . . .172
Section 13. Keyboard Interrupt (KBI)
13.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
13.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
13.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
13.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176
13.5 Keyboard Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
Table of Contents |
11 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
13.6 |
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . .180 |
13.7 |
Keyboard Module During Break Interrupts . . . . . . . . . |
. . . . . .180 |
13.8 |
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .181 |
|
Section 14. Low-Voltage Inhibit (LVI) |
|
14.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .183 |
14.2 |
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .183 |
14.3 |
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .183 |
14.4 |
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .184 |
14.5 |
LVI Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .187 |
14.6 |
LVI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .188 |
14.7 |
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .188 |
|
Section 15. Monitor ROM (MON) |
|
15.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .189 |
15.2 |
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .189 |
15.3 |
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .189 |
15.4 |
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .190 |
15.5 |
Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .202 |
|
Section 16. Input/Output Ports (I/O) |
|
16.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .205 |
16.2 |
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .205 |
16.3 |
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .209 |
16.4 |
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .213 |
16.5 |
Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .216 |
16.6 |
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .220 |
Technical Data |
MC68HC908GR8 — Rev 4.0 |
|
12 |
Table of Contents |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
16.7 Port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225
Section 17. RAM
17.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229
17.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229
17.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229
Section 18. Serial Communications Interface (SCI)
18.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .231
18.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .231
18.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
18.4 Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
18.5 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
18.6 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250
18.7 SCI During Break Module Interrupts. . . . . . . . . . . . . . . . . . . .251
18.8 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251
18.9 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252
Section 19. System Integration Module (SIM)
19.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .271
19.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .271
19.3 SIM Bus Clock Control and Generation . . . . . . . . . . . . . . . . .275
19.4 Reset and System Initialization. . . . . . . . . . . . . . . . . . . . . . . .276
19.5 SIM Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .281
19.6 Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .282
19.7 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .290
19.8 SIM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
Table of Contents |
13 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
Section 20. Serial Peripheral Interface (SPI)
20.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .297
20.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .297
20.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .298
20.4 Pin Name Conventions and I/O Register Addresses . . . . . . .298
20.5 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299
20.6 Transmission Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303
20.7 Queuing Transmission Data . . . . . . . . . . . . . . . . . . . . . . . . . .309
20.8 Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310
20.9 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314
20.10 Resetting the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316
20.11 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .317
20.12 SPI During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . .318
20.13 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318
20.14 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .322
|
Section 21. Timebase Module (TBM) |
|
|
21.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . |
. .329 |
21.2 |
Introduction . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . |
. .329 |
21.3 |
Features . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. .329 |
21.4 |
Functional Description . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. .330 |
21.5 |
Timebase Register Description. . . . . . . . |
. . . . . . . . . . . . . . |
. .331 |
21.6 |
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. .332 |
21.7 |
Low-Power Modes . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. .333 |
|
Section 22. Timer Interface Module (TIM) |
|
|
22.1 |
Contents . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . |
. .335 |
Technical Data |
|
MC68HC908GR8 — |
Rev 4.0 |
14 |
Table of Contents |
MOTOROLA |
|
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
22.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335
22.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
22.4 Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
22.5 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
22.6 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .346
22.7 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .347
22.8 TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . .348
22.9 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .348
22.10 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .349
Section 23. Electrical Specifications
23.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .361
23.2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . .362
23.3 Functional Operating Range. . . . . . . . . . . . . . . . . . . . . . . . . .363
23.4 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363
23.5 5.0 V DC Electrical Characteristics. . . . . . . . . . . . . . . . . . . . .364
23.6 3.0 V DC Electrical Characteristics. . . . . . . . . . . . . . . . . . . . .366
23.7 5.0 V Control Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .368
23.8 3.0 V Control Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369
23.9 Output High-Voltage Characteristics . . . . . . . . . . . . . . . . . . .370
23.10 Output Low-Voltage Characteristics . . . . . . . . . . . . . . . . . . . .373
23.11 Typical Supply Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376
23.12 ADC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .378
23.13 5.0 V SPI Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .379
23.14 3.0 V SPI Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .380
23.15 Timer Interface Module Characteristics . . . . . . . . . . . . . . . . .383
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
Table of Contents |
15 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Table of Contents
23.16 Clock Generation Module Characteristics . . . . . . . . . . . . . . .383
23.17 Memory Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .385
Section 24. Mechanical Specifications
24.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .387
24.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .387
24.3 32-Pin LQFP (Case #873A) . . . . . . . . . . . . . . . . . . . . . . . . . .388
24.4 28-Pin PDIP (Case #710) . . . . . . . . . . . . . . . . . . . . . . . . . . . .389
24.5 28-Pin SOIC (Case #751F). . . . . . . . . . . . . . . . . . . . . . . . . . .390
Section 25. Ordering Information
25.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .391
25.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .391
25.3 MC Order Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .392
25.4 Development Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .393
Glossary
Revision History
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405
Changes from Rev 3.0 published in February 2002 to Rev 4.0 published in June 2002. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405
Changes from Rev 2.0 published in January 2002 to Rev 3.0 published in February 2002 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .406
Changes from Rev 1.0 published in April 2001 to Rev 2.0 published in December 2001 . . . . . . . . . . . . . . . . . . . . . . . . . . . .406
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
16 |
Table of Contents |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Technical Data — MC68HC908GR8
List of Tables
Table |
Title |
Page |
2-1 Vector Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 4-1 Interrupt Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 4-2 Interrupt Source Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75 5-1 Mux Channel Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 5-2 ADC Clock Divide Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
7-1 Numeric Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
7-2 PRE 1 and PRE0 Programming . . . . . . . . . . . . . . . . . . . . . . .117 7-3 VPR1 and VPR0 Programming . . . . . . . . . . . . . . . . . . . . . . .117
10-1 Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
10-2 Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155 11-1 Examples of protect start address: . . . . . . . . . . . . . . . . . . . . .166
14-1 LVIOUT Bit Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187
15-1 Monitor Mode Signal Requirements and Options . . . . . . . . . .193 15-2 Mode Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .196
15-3 Monitor Baud Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . .197
15-4 READ (Read Memory) Command . . . . . . . . . . . . . . . . . . . . .199 15-5 WRITE (Write Memory) Command. . . . . . . . . . . . . . . . . . . . .199
15-6 IREAD (Indexed Read) Command . . . . . . . . . . . . . . . . . . . . .200
15-7 IWRITE (Indexed Write) Command . . . . . . . . . . . . . . . . . . . .200 15-8 READSP (Read Stack Pointer) Command . . . . . . . . . . . . . . .201
15-9 RUN (Run User Program) Command . . . . . . . . . . . . . . . . . . .201 16-1 Port Control Register Bits Summary. . . . . . . . . . . . . . . . . . . .208 16-2 Port A Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211
16-3 Port B Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215
16-4 Port C Pin Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 16-5 Port D Pin Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223
16-6 Port E Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227
18-1 Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233 18-2 Start Bit Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
List of Tables |
17 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
List of Tables
18-3 Data Bit Recovery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244 18-4 Stop Bit Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .245 18-5 Character Format Selection . . . . . . . . . . . . . . . . . . . . . . . . . .255 18-6 SCI Baud Rate Prescaling . . . . . . . . . . . . . . . . . . . . . . . . . . .266 18-7 SCI Baud Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . .266 18-8 SCI Baud Rate Selection Examples . . . . . . . . . . . . . . . . . . . .268 19-1 Signal Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . .273 19-2 PIN Bit Set Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .277 19-3 Interrupt Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .286 19-4 SIM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293 20-1 Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299 20-2 SPI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314 20-3 SPI Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .321
20-4 SPI Master Baud Rate Selection . . . . . . . . . . . . . . . . . . . . . .327
21-1 Timebase Rate Selection for OSC1 = 32.768 kHz . . . . . . . . .331 22-1 Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
22-2 Prescaler Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351
22-3 Mode, Edge, and Level Selection . . . . . . . . . . . . . . . . . . . . . .358 23-1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . .362
23-2 Functional Operation Range. . . . . . . . . . . . . . . . . . . . . . . . . .363
23-3 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363 23-4 5.0V DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . .364
23-5 3.0 V DC Electrical Characteristics. . . . . . . . . . . . . . . . . . . . .366
23-6 5.0 V Control Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .368 23-7 3.0 V Control Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369
23-8 Timer Interface Module Characteristics . . . . . . . . . . . . . . . . .383
23-9 CGM Component Specifications. . . . . . . . . . . . . . . . . . . . . . .383 25-1 MC Order Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .392
25-2 Development Tool Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .393 25-3 Development Tool Components . . . . . . . . . . . . . . . . . . . . . . .393
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
18 |
List of Tables |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Technical Data — MC68HC908GR8
List of Figures
Figure |
Title |
Page |
1-1 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 1-2 QFP Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 1-3 DIP And SOIC Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . .31 1-4 Power Supply Bypassing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 2-1 Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
2-2 Control, Status, and Data Registers . . . . . . . . . . . . . . . . . . . . .39
4-1 Internal Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 4-2 Power-On Reset Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
4-3 SIM Reset Status Register (SRSR) . . . . . . . . . . . . . . . . . . . . .65
4-4 Interrupt Stacking Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67 4-5 Interrupt Recognition Example . . . . . . . . . . . . . . . . . . . . . . . . .68
4-6 Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
4-7 Interrupt Status Register 1 (INT1). . . . . . . . . . . . . . . . . . . . . . .76 4-8 Interrupt Status Register 2 (INT2). . . . . . . . . . . . . . . . . . . . . . .76
4-9 Interrupt Status Register 3 (INT3). . . . . . . . . . . . . . . . . . . . . . .77
5-1 ADC Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81 5-2 ADC Status and Control Register (ADSCR) . . . . . . . . . . . . . . .85
5-3 ADC Data Register (ADR) . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
5-4 ADC Clock Register (ADCLK) . . . . . . . . . . . . . . . . . . . . . . . . .88 6-1 Break Module Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .92
6-2 I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93 6-3 Break Status and Control Register (BRKSCR). . . . . . . . . . . . .95 6-4 Break Address Register High (BRKH) . . . . . . . . . . . . . . . . . . .96
6-5 Break Address Register Low (BRKL) . . . . . . . . . . . . . . . . . . . .96
6-6 SIM Break Status Register (SBSR) . . . . . . . . . . . . . . . . . . . . .96 6-7 SIM Break Flag Control Register (SBFCR) . . . . . . . . . . . . . . .98
7-1 CGMC Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
7-2 CGMC External Connections . . . . . . . . . . . . . . . . . . . . . . . . .111 7-3 CGMC I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . .114
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
List of Figures |
19 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
List of Figures
7-4 |
PLL Control Register (PCTL) . . . . . . . . . . . . . . . . . . . |
. . . . . .115 |
7-5 |
PLL Bandwidth Control Register (PBWC) . . . . . . . . . |
. . . . . .118 |
7-6 |
PLL Multiplier Select Register High (PMSH) . . . . . . . |
. . . . . .119 |
7-7 |
PLL Multiplier Select Register Low (PMSL) . . . . . . . . . |
. . . . .120 |
7-8 |
PLL VCO Range Select Register (PMRS) . . . . . . . . . . |
. . . . .121 |
7-9 |
PLL Reference Divider Select Register (PMDS) . . . . . |
. . . . .122 |
7-10 |
PLL Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .127 |
8-1 |
Configuration Register 2 (CONFIG2) . . . . . . . . . . . . . . |
. . . . .130 |
8-2 |
Configuration Register 1 (CONFIG1) . . . . . . . . . . . . . . |
. . . . .130 |
9-1 |
COP Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .134 |
9-2 |
COP Control Register (COPCTL) . . . . . . . . . . . . . . . . . |
. . . . .136 |
10-1 |
CPU registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .140 |
10-2 |
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .141 |
10-3 |
Index register (H:X). . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .141 |
10-4 |
Stack pointer (SP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .142 |
10-5 |
Program counter (PC). . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .143 |
10-6 |
Condition code register (CCR) . . . . . . . . . . . . . . . . . . . |
. . . . .143 |
11-1 |
FLASH Control Register (FLCR) . . . . . . . . . . . . . . . . . |
. . . . .159 |
11-2 |
FLASH Programming Flowchart . . . . . . . . . . . . . . . . . . |
. . . . .164 |
11-3 |
FLASH Block Protect Register (FLBPR). . . . . . . . . . . . |
. . . . .165 |
11-4 |
FLASH Block Protect Start Address . . . . . . . . . . . . . . . |
. . . . .165 |
12-1 |
IRQ Module Block Diagram . . . . . . . . . . . . . . . . . . . . . |
. . . . .169 |
12-2 |
IRQ I/O Register Summary. . . . . . . . . . . . . . . . . . . . . . |
. . . . .169 |
12-3 |
IRQ Status and Control Register (INTSCR) . . . . . . . . . |
. . . . .172 |
13-1 |
Keyboard Module Block Diagram . . . . . . . . . . . . . . . . . |
. . . . .177 |
13-2 |
I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .177 |
13-3 |
Keyboard Status and Control Register (INTKBSCR) . . |
. . . . .181 |
13-4 |
Keyboard Interrupt Enable Register (INTKBIER) . . . . . |
. . . . .182 |
14-1 |
LVI Module Block Diagram . . . . . . . . . . . . . . . . . . . . . . |
. . . . .185 |
14-2 |
LVI I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . |
. . . . .186 |
14-3 |
LVI Status Register (LVISR) . . . . . . . . . . . . . . . . . . . . . |
. . . . .187 |
15-1 |
Monitor Mode Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .191 |
15-2 |
Low-Voltage Monitor Mode Entry Flowchart. . . . . . . . . |
. . . . .195 |
15-3 |
Monitor Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .196 |
15-4 |
Break Transaction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .196 |
15-5 |
Read Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .198 |
15-6 |
Write Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .198 |
15-7 |
Stack Pointer at Monitor Mode Entry . . . . . . . . . . . . . . |
. . . . .202 |
Technical Data |
MC68HC908GR8 — Rev 4.0 |
|
|
|
|
|
|
|
20 |
List of Figures |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
List of Figures
15-8 Monitor Mode Entry Timing. . . . . . . . . . . . . . . . . . . . . . . . . . .203 16-1 I/O Port Register Summary. . . . . . . . . . . . . . . . . . . . . . . . . . .206 16-2 Port A Data Register (PTA) . . . . . . . . . . . . . . . . . . . . . . . . . .209 16-3 Data Direction Register A (DDRA) . . . . . . . . . . . . . . . . . . . . .210 16-4 Port A I/O Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211 16-5 Port A Input Pullup Enable Register (PTAPUE) . . . . . . . . . . .212 16-6 Port B Data Register (PTB) . . . . . . . . . . . . . . . . . . . . . . . . . .213 16-7 Data Direction Register B (DDRB) . . . . . . . . . . . . . . . . . . . . .214 16-8 Port B I/O Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215 16-9 Port C Data Register (PTC) . . . . . . . . . . . . . . . . . . . . . . . . . .216 16-10 Data Direction Register C (DDRC) . . . . . . . . . . . . . . . . . . . . .217 16-11 Port C I/O Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 16-12 Port C Input Pullup Enable Register (PTCPUE) . . . . . . . . . . .219
16-13 Port D Data Register (PTD) . . . . . . . . . . . . . . . . . . . . . . . . . .220
16-14 Data Direction Register D (DDRD) . . . . . . . . . . . . . . . . . . . . .222 16-15 Port D I/O Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223
16-16 Port D Input Pullup Enable Register (PTDPUE) . . . . . . . . . . .224
16-17 Port E Data Register (PTE) . . . . . . . . . . . . . . . . . . . . . . . . . .225 16-18 Data Direction Register E (DDRE) . . . . . . . . . . . . . . . . . . . . .226
16-19 Port E I/O Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227
18-1 SCI Module Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . .234 18-2 SCI I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .235
18-3 SCI Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .236
18-4 SCI Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .237 18-5 SCI Receiver Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . .242
18-6 Receiver Data Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . .243
18-7 Slow Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246 18-8 Fast Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247
18-9 SCI Control Register 1 (SCC1). . . . . . . . . . . . . . . . . . . . . . . .253 18-10 SCI Control Register 2 (SCC2). . . . . . . . . . . . . . . . . . . . . . . .256 18-11 SCI Control Register 3 (SCC3). . . . . . . . . . . . . . . . . . . . . . . .258
18-12 SCI Status Register 1 (SCS1) . . . . . . . . . . . . . . . . . . . . . . . .260
18-13 Flag Clearing Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263 18-14 SCI Status Register 2 (SCS2) . . . . . . . . . . . . . . . . . . . . . . . .264
18-15 SCI Data Register (SCDR) . . . . . . . . . . . . . . . . . . . . . . . . . . .265
18-16 SCI Baud Rate Register (SCBR) . . . . . . . . . . . . . . . . . . . . . .265 19-1 SIM Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272 19-2 SIM I/O Register Summary. . . . . . . . . . . . . . . . . . . . . . . . . . .274
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
List of Figures |
21 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
List of Figures
19-3 |
CGM Clock Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . .275 |
||
19-4 |
External Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .277 |
||
19-5 |
Internal Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .278 |
||
19-6 |
Sources of Internal Reset . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .278 |
||
19-7 |
POR Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .279 |
||
19-8 |
Interrupt Entry Timing . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .283 |
||
19-9 |
Interrupt Recovery Timing . . . . . . . . . . . . . . . . . . . . . . |
. . . . .283 |
||
19-10 |
Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .284 |
||
19-11 |
Interrupt Recognition Example . . . . . . . . . . . . . . . . . . . |
. . . . .285 |
||
19-12 |
Interrupt Status Register 1 (INT1). . . . . . . . . . . . . . . . . |
. . . . .288 |
||
19-13 |
Interrupt Status Register 2 (INT2). . . . . . . . . . . . . . . . . |
. . . . .288 |
||
19-14 |
Interrupt Status Register 3 (INT3). . . . . . . . . . . . . . . . . |
. . . . .289 |
||
19-15 |
Wait Mode Entry Timing . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .291 |
||
19-16 |
Wait Recovery from Interrupt or Break . . . . . . . . . . . . . |
. . . . .291 |
||
19-17 |
Wait Recovery from Internal Reset. . . . . . . . . . . . . . . . |
. . . . .292 |
||
19-18 |
Stop Mode Entry Timing . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .293 |
||
19-19 |
Stop Mode Recovery from Interrupt or Break . . . . . . . . |
. . . . .293 |
||
19-20 |
SIM Break Status Register (SBSR) . . . . . . . . . . . . . . . |
. . . . .294 |
||
19-21 |
SIM Reset Status Register (SRSR) . . . . . . . . . . . . . . . |
. . . . .295 |
||
19-22 |
SIM Break Flag Control Register (SBFCR) . . . . . . . . . |
. . . . .296 |
||
20-1 |
SPI I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . |
. . . . .299 |
||
20-2 |
SPI Module Block Diagram. . . . . . . . . . . . . . . . . . . . . . |
. . . . .300 |
||
20-3 |
Full-Duplex Master-Slave Connections . . . . . . . . . . . . |
. . . . .301 |
||
20-4 |
Transmission Format (CPHA = 0) . . . . . . . . . . . . . . . . |
. . . . .305 |
||
20-5 |
|
|
|
305 |
CPHA/SS |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Timing |
|||
20-6 |
Transmission Format (CPHA = 1) . . . . . . . . . . . . . . . . |
. . . . .306 |
||
20-7 |
Transmission Start Delay (Master) . . . . . . . . . . . . . . . . |
. . . . .308 |
||
20-8 |
.SPRF/SPTE CPU Interrupt Timing . . . . . . . . . . . . . . . |
. . . . .309 |
||
20-9 |
Missed Read of Overflow Condition . . . . . . . . . . . . . . . |
. . . . .311 |
||
20-10 |
Clearing SPRF When OVRF Interrupt Is Not Enabled . |
. . . . .312 |
||
20-11 |
SPI Interrupt Request Generation . . . . . . . . . . . . . . . . |
. . . . .315 |
||
20-12 |
|
|
|
320 |
CPHA/SS |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Timing |
|||
20-13 |
SPI Control Register (SPCR) . . . . . . . . . . . . . . . . . . . . |
. . . . .322 |
||
20-14 |
SPI Status and Control Register (SPSCR) . . . . . . . . . . |
. . . . .325 |
||
20-15 |
SPI Data Register (SPDR) . . . . . . . . . . . . . . . . . . . . . . |
. . . . .328 |
||
21-1 |
Timebase Block Diagram . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .330 |
||
21-2 |
Timebase Control Register (TBCR) . . . . . . . . . . . . . . . |
. . . . .331 |
||
22-1 |
TIM Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . .338 |
||
Technical Data |
|
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
|
|
|
|
|
|
|
|
22 |
|
|
List of Figures |
MOTOROLA |
For More Information On This Product, |
|
|||
|
Go to: www.freescale.com |
|
||
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
List of Figures
22-2 TIM I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .339 22-3 PWM Period and Pulse Width . . . . . . . . . . . . . . . . . . . . . . . .343 22-4 TIM Status and Control Register (TSC) . . . . . . . . . . . . . . . . .349 22-5 TIM Counter Registers High (TCNTH) . . . . . . . . . . . . . . . . . .352 22-6 TIM Counter Registers Low (TCNTL) . . . . . . . . . . . . . . . . . . .352 22-7 TIM Counter Modulo Register High (TMODH) . . . . . . . . . . . .353 22-8 TIM Counter Modulo Register Low (TMODL) . . . . . . . . . . . . .353 22-9 TIM Counter Register High (TCNTH) . . . . . . . . . . . . . . . . . . .354 22-10 TIM Counter Register Low (TCNTL). . . . . . . . . . . . . . . . . . . .354 22-11 TIM Channel 0 Status and Control Register (TSC0) . . . . . . .355 22-12 TIM Channel 1 Status and Control Register (TSC1) . . . . . . .355 22-13 CHxMAX Latency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .359 22-14 TIM Channel 0 Register High (TCH0H) . . . . . . . . . . . . . . . . .360
22-15 TIM Channel 0 Register Low (TCH0L) . . . . . . . . . . . . . . . . . .360
22-16 TIM Channel 1 Register High (TCH1H) . . . . . . . . . . . . . . . . .360 22-17 TIM Channel 1 Register Low (TCH1L) . . . . . . . . . . . . . . . . . .360
23-1 Typical High-Side Driver Characteristics –
Port PTA3–PTA0 (VDD = 4.5 Vdc) . . . . . . . . . . . . . . . . . . . . .370 23-2 Typical High-Side Driver Characteristics –
Port PTA3–PTA0 (VDD = 2.7 Vdc) . . . . . . . . . . . . . . . . . . . . .370
23-3 Typical High-Side Driver Characteristics –
Port PTC1–PTC0 (VDD = 4.5 Vdc) . . . . . . . . . . . . . . . . . . . . .371
23-4 Typical High-Side Driver Characteristics –
Port PTC1–PTC0 (VDD = 2.7 Vdc) . . . . . . . . . . . . . . . . . . . . .371 23-5 Typical High-Side Driver Characteristics – Ports PTB5–PTB0,
PTD6–PTD0, and PTE1–PTE0 (VDD = 5.5 Vdc) . . . . . . . . . .372
23-6 Typical High-Side Driver Characteristics – Ports PTB5–PTB0, PTD6–PTD0, and PTE1–PTE0 (VDD = 2.7 Vdc) . . . . . . . . . .372
23-7 Typical Low-Side Driver Characteristics –
Port PTA3–PTA0 (VDD = 5.5 Vdc) . . . . . . . . . . . . . . . . . . . . .373 23-8 Typical Low-Side Driver Characteristics –
Port PTA3–PTA0 (VDD = 2.7 Vdc) . . . . . . . . . . . . . . . . . . . . .373
23-9 Typical Low-Side Driver Characteristics –
Port PTC1–PTC0 (VDD = 4.5 Vdc) . . . . . . . . . . . . . . . . . . . . .374
23-10 Typical Low-Side Driver Characteristics –
Port PTC1–PTC0 (VDD = 2.7 Vdc) . . . . . . . . . . . . . . . . . . . . .374 23-11 Typical Low-Side Driver Characteristics – Ports PTB5–PTB0,
PTD6–PTD0, and PTE1–PTE0 (VDD = 5.5 Vdc) . . . . . . . . . .375
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
List of Figures |
23 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
List of Figures
23-12 Typical Low-Side Driver Characteristics – Ports PTB5–PTB0,
|
PTD6–PTD0, and PTE1–PTE0 (VDD = 2.7 Vdc) . . . . . . . . . . |
375 |
23-13 Typical Operating IDD, with All Modules Turned On |
|
|
|
(–40 ° C to 125 ° C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
376 |
23-14 |
Typical Wait Mode IDD, with all Modules Disabled |
|
|
(–40 ° C to 125 ° C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
376 |
23-15 |
Typical Stop Mode IDD, with all Modules Disabled |
|
|
(–40 ° C to 125 ° C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
377 |
23-16 |
SPI Master Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
381 |
23-17 |
SPI Slave Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
382 |
Freescale Semiconductor, Inc.
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
24 |
List of Figures |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
Technical Data — MC68HC908GR8
Section 1. General Description
1.1 Contents
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1.5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
1.6 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
1.2 Introduction
The MC68HC908GR8 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the enhanced M68HC08 central processor unit (CPU08) and are available with a variety of modules, memory sizes and types, and package types.
This document also describes the MC68HC908GR4. The
MC68HC908GR4 is a device identical to the MC68HC908GR8 except that it has less Flash memory. Only when there are differences from the
MC68HC908GR8 is the MC68HC908GR4 specifically mentioned in the text.
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
General Description |
25 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
General Description
1.3 Features
For convenience, features have been organized to reflect:
•Standard features of the MC68HC908GR8
•Features of the CPU08
1.3.1Standard Features of the MC68HC908GR8
•High-performance M68HC08 architecture optimized for C- compilers
•Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
•8-MHz internal bus frequency
•FLASH program memory security(1)
•On-chip programming firmware for use with host personal computer which does not require high voltage for entry
•In-system programming
•System protection features:
–Optional computer operating properly (COP) reset
–Low-voltage detection with optional reset and selectable trip points for 3.0 V and 5.0 V operation
–Illegal opcode detection with reset
–Illegal address detection with reset
•Low-power design; fully static with stop and wait modes
•Standard low-power modes of operation:
–Wait mode
–Stop mode
•Master reset pin and power-on reset (POR)
1.No security feature is absolutely secure. However, Motorola’s strategy is to make reading or copying the FLASH difficult for unauthorized users.
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
26 |
General Description |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
General Description
Features
•7680 bytes of on-chip FLASH memory on the MC68HC908GR8 and 4096 bytes of on-chip FLASH memory on the MC68HC908GR4 with in-circuit programming capabilities of FLASH program memory
•384 bytes of on-chip random-access memory (RAM)
•Serial peripheral interface module (SPI)
•Serial communications interface module (SCI)
•One 16-bit, 2-channel timer (TIM1) and one 16-bit, 1-channel timer (TIM2) interface modules with selectable input capture, output compare, and PWM capability on each channel
•6-channel, 8-bit successive approximation analog-to-digital converter (ADC)
•BREAK module (BRK) to allow single breakpoint setting during incircuit debugging
•Internal pullups on IRQ and RST to reduce customer system cost
•Clock generator module with on-chip 32-kHz crystal compatible
PLL (phase-lock loop)
•Up to 21 general-purpose input/output (I/O) pins, including:
–19 shared-function I/O pins
–Up to two dedicated I/O pins, depending on package choice
•Selectable pullups on inputs only on ports A, C, and D. Selection is on an individual port bit basis. During output mode, pullups are disengaged.
•High current 10-mA sink/10-mA source capability on all port pins
•Higher current 15-mA sink/source capability on PTC0–PTC1
•Timebase module with clock prescaler circuitry for eight user selectable periodic real-time interrupts with optional active clock source during stop mode for periodic wakeup from stop using an external 32-kHz crystal
•Oscillator stop mode enable bit (OSCSTOPENB) in the CONFIG register to allow user selection of having the oscillator enabled or disabled during stop mode
MC68HC908GR8 — |
Rev 4.0 |
Technical Data |
|
|
|
MOTOROLA |
General Description |
27 |
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
General Description
•4-bit keyboard wakeup port
•32-pin quad flat pack (QFP) or 28-pin plastic dual-in-line package (DIP) or 28-pin small outline integrated circuit (SOIC)
•Specific features of the MC68HC908GR8 in 28-pin DIP and 28-pin SOIC are:
–Port B is only 4 bits: PTB0–PTB3; 4-channel ADC module
–No Port C bits
1.3.2Features of the CPU08
Features of the CPU08 include:
•Enhanced HC05 programming model
•Extensive loop control functions
•16 addressing modes (eight more than the HC05)
•16-bit index register and stack pointer
•Memory-to-memory data transfers
•Fast 8 × 8 multiply instruction
•Fast 16/8 divide instruction
•Binary-coded decimal (BCD) instructions
•Optimization for controller applications
•Efficient C language support
1.4MCU Block Diagram
Figure 1-1 shows the structure of the MC68HC908GR8.
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
28 |
General Description |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
|
MOTOROLA |
MC68HC908GR8 |
|
|
— |
MoreFor |
|
0.4 Rev |
|
Figure |
|
Go |
|
|
On Information |
DescriptionGeneral |
DiagramBlock MCU .1-1 |
Product, |
||
. www to: |
|
|
freescale |
|
|
This |
|
|
com. |
|
|
29 |
Data Technical |
Freescale Semiconductor, Inc.
|
|
|
INTERNAL BUS |
|
|
|
M68HC08 CPU |
|
|
|
CPU |
ARITHMETIC/LOGIC |
PROGR. TIMEBASE |
DDRA |
|
MODULETERFACETERFACE |
|||
|
|
|
N |
|
|
REGISTERS |
UNIT (ALU) |
N |
|
|
CONTROL AND STATUS REGISTERS — 64 BYTES |
SINGLE BRKPT BREAK |
|
|
|
MODULE |
DDRB |
||
|
MC68HC908GR8 USER FLASH — 7680 BYTES |
DUAL V. LOW-VOLTAGE INHIBIT |
|
|
|
MC68HC908GR4 USER FLASH — 4096BYTES |
MODULE |
|
|
|
USER RAM — 384 BYTES |
4-BIT KEYBOARD |
DDRC |
|
|
|
|
||
|
|
|
INTERRUPT MODULE |
|
|
MONITOR ROM — 310 BYTES |
2-CHANNEL TIMER I |
|
|
|
|
|
|
|
|
FLASH PROGRAMMING (BURN-IN) ROM — 544 BYTES |
MODULE 1 |
|
|
|
1-CHANNEL TIMER I |
DDRD |
||
|
USER FLASH VECTOR SPACE — 36 BYTES |
|||
|
MODULE 2 |
|
||
|
|
N |
|
|
|
|
TEGRATION |
|
|
|
|
CLOCK GENERATOR MODULE |
SERIAL COMMUNICATIONS |
|
|
OSC1 |
|
|
|
|
32-kHz OSCILLATOR |
INTERFACE MODULE |
|
|
|
OSC2 |
|
|
|
|
|
|
|
|
|
|
|
COMPUTER OPERATING |
DDRE |
|
CGMXFC |
PHASE-LOCKED LOOP |
PROPERLY MODULE |
|
|
|
|||
|
|
|
||
|
|
24 INTR SYSTEM I |
SERIAL PERIPHERAL |
|
|
|
INTERFACE MODULE |
|
|
|
* RST |
|
|
|
|
MODULE |
|
|
|
|
|
|
|
|
|
|
|
MONITOR MODULE |
|
|
* IRQ |
SINGLE EXTERNAL IRQ |
|
|
|
MODULE |
|
|
|
|
|
DATA BUS SWITCH |
|
|
|
|
|
|
|
|
VDDAD / VREFH |
8-BIT ANALOG-TO-DIGITAL |
MODULE |
|
|
|
|
||
|
VSSAD / VREFL |
CONVERTER MODULE |
MEMORY MAP |
|
|
VDD |
|
MODULE |
|
|
VSS |
POWER |
MASK OPTION REGISTER1 |
|
|
VDDA |
|
|
|
|
VSSA |
|
MODULE |
|
† |
Ports are software configurable with pullup device if input port. |
MASK OPTION REGISTER2 |
|
|
‡ |
Higher current drive port pins |
|
||
MODULE |
|
|||
* Pin contains integrated pullup device |
|
|||
|
|
|||
PORTA |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PTA3/KBD3–PTA0/KBD0 † |
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PORTB |
|
|
|
|
|
PTB5/AD5–PTB0/AD0 |
||||||
|
|
|
|
|||||||||
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PORTC |
|
|
|
|
|
PTC1–PTC0 † ‡ |
||||||
|
|
|
|
|||||||||
|
|
|
|
|||||||||
|
|
|
|
|
|
PTD6/T2CH0 † |
||||||
|
|
|
|
|
|
|||||||
|
|
|
|
|
|
|||||||
|
|
|
|
|
||||||||
|
|
|
|
|
|
PTD5/T1CH1 † |
||||||
|
|
|
|
|
||||||||
PORTD |
|
|
|
|
|
PTD4/T1CH0 † |
||||||
|
|
|
|
|||||||||
|
|
|
|
|
PTD3/SPSCK † |
|||||||
|
|
|
|
|
|
|||||||
|
|
|
|
|
|
PTD2/MOSI † |
||||||
|
|
|
|
|
||||||||
|
|
|
|
|
|
PTD1/MISO † |
||||||
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
PTD0/SS |
† |
|||||
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PORTE |
|
|
|
|
|
PTE0/TxD |
||||||
|
|
|
|
|
|
PTE1/RxD |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
POWER-ON RESET
MODULE
SECURITY
MODULE
MONITOR MODE ENTRY
MODULE
.Inc Semiconductor, Freescale
Diagram Block MCU |
Description General |
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
General Description
1.5 Pin Assignments
|
|
|
OSC1 |
OSC2 |
CGMXFC |
V |
V |
PTC1 |
PTC0 |
|
|
|
|
|
|
|
SSA |
DDA |
|
|
|
|
|
|
32 |
31 |
30 |
29 |
28 |
27 |
26 |
|
|
|
|
|
|||||||
RST |
1 |
|||||||||
|
|
|
|
|
|
|||||
PTE0/TxD |
2 |
|
|
|
|
|
|
|||
PTE1/RxD |
3 |
|
|
|
|
|
|
|||
IRQ 4
PTD0/SS 5
PTD1/MISO 
6
PTD2/MOSI 
7
PTD3/SPSCK 8
9 |
10 |
11 |
12 |
13 |
14 |
15 |
V |
V |
PTD4/T1CH0 |
PTD5/T1CH1 |
PTD6/T2CH0 |
PTB0/AD0 |
PTB1/AD1 |
SS |
DD |
|
|
|
|
|
|
PTA3/KBD3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25 |
24 |
||
|
|
||
|
|
23 |
|
|
|
22 |
|
|
|
21 |
|
|
|
20 |
|
|
|
19 |
|
|
|
18 |
|
16 |
17 |
||
|
|
||
|
|
|
|
|
|
|
|
|
PTB2/AD2 |
|
|
PTA2/KBD2
PTA1/KBD1
PTA0/KBD0
VSSAD/VREFL
VDDAD/VREFH
PTB5/AD5
PTB4/AD4
PTB3/AD3
NOTE: Ports PTB4, PTB5, PTC0, and PTC1 are available only with the QFP.
Figure 1-2. QFP Pin Assignments
Technical Data |
|
MC68HC908GR8 — Rev 4.0 |
|
|
|
30 |
General Description |
MOTOROLA |
|
For More Information On This Product, |
|
|
Go to: www.freescale.com |
|
Loading...