Freescale Semiconductor, Inc.
HC805K3GRS/D
REV. 1.0
Freescale Semiconductor, Inc...
General Release Specification
April 19, 1996
N O N - D I S C L O S U R E
CSIC System Design Group
Austin, Texas
For More Information On This Product,
Go to: www.freescale.com
A G R E E M E N T
68HC805K3
R E Q U I R E D
N O N - D I S C L O S U R E
General Release Specification
A G R E E M E N T
R E Q U I R E D
Freescale Semiconductor, Inc.
General Release Specification — MC68HC805K3
List of Sections
Table of Contents ............................................................... 5
List of Figures .................................................................. 11
Freescale Semiconductor, Inc...
List of Tables .................................................................... 13
Section 1. General Description ....................................... 15
Section 2. Memory Map ................................................... 27
Section 3. Central Processing Unit Core ....................... 35
Section 4. Interrupts ........................................................ 39
Section 5. Resets ............................................................. 49
Section 6. Operational Modes ......................................... 53
Section 7. Parallel Input/Output ...................................... 59
Section 8. 8-Bit Timer ...................................................... 71
Section 9. Personality EEPROM ..................................... 79
Section 10. User Program EEPROM ............................... 89
Section 11. Instruction Set .............................................. 91
Section 12. Electrical Specifications ............................ 109
Section 13. Mechnical Specifications .......................... 115
Section 14. Ordering Information ................................. 117
MC68HC805K3 — Rev. 1.0
List of Sections
For More Information On This Product,
Go to: www.freescale.com
3
N O N - D I S C L O S U R E
A G R E E M E N T
R E Q U I R E D
Freescale Semiconductor, Inc.
General Release Specification
R E Q U I R E D
N O N - D I S C L O S U R E
Freescale Semiconductor, Inc...
A G R E E M E N T
MC68HC805K3 — Rev. 1.0
4
List of Sections
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
General Release Specification — MC68HC805K3
Table of Contents
Section 1. General Description
1.1
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Mask Option Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
MCU Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Freescale Semiconductor, Inc...
1.3
1.4
1.5
1.6
Section 2. Memory Map
2.1
2.2
2.3
2.4
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
I/O and Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Random-Access Memory (RAM) . . . . . . . . . . . . . . . . . . . . . . .32
MC68HC805K3
—
Rev. 1.0
For More Information On This Product,
Go to: www.freescale.com
5
N O N - D I S C L O S U R E
1.7
Functional Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
1.7.1
V
DD
and V
SS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
1.7.2
OSC1 and OSC2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
1.7.2.1
2-Pin Crystal Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . .21
1.7.2.2
2-Pin Ceramic Resonator Oscillator. . . . . . . . . . . . . . . . .22
1.7.2.3
2-Pin RC Oscillators. . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
1.7.2.4
3-Pin RC Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.7.2.5
External Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.7.3
Reset (RESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.7.4
Maskable Interrupt Request (IRQ) . . . . . . . . . . . . . . . . . . .24
1.7.5
PA0 through PA7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.7.6
PB0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.7.7
PB1/OSC3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
A G R E E M E N T
1.2
R E Q U I R E D
