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MC68HC05J1A — Rev. 3.0
Technical Data
MOTOROLA
List of Figures
13
Technical Data — MC68HC05J1A
List of Figures
Figure
Title
Page
1-1
1-2
1-3
1-4
MC68HC05J1A Block Diagram . . . . . . . . . . . . . . . . . . . . . .20
Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Bypassing Layout Recommendation . . . . . . . . . . . . . . . . . .22
Crystal Connections
with Feedback Resistor Mask Option . . . . . . . . . . . . . . .23
Crystal Connections
without Feedback Resistor Mask Option. . . . . . . . . . . . .23
Ceramic Resonator Connections
with Feedback Resistor Mask Option . . . . . . . . . . . . . . .24
Ceramic Resonator Connections
without Feedback Resistor Mask Option. . . . . . . . . . . . .24
RC Oscillator Connections . . . . . . . . . . . . . . . . . . . . . . . . . .25
External Clock Connections . . . . . . . . . . . . . . . . . . . . . . . . .25
1-5
1-6
1-7
1-8
1-9
2-1
2-2
Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
3-1
3-2
3-3
3-4
3-5
3-6
Programming Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Index Register (X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Stack Pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Condition Code Register (CCR). . . . . . . . . . . . . . . . . . . . . .38
4-1
4-2
4-3
External Interrupt Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
IRQ Status and Control Register (ISCR) . . . . . . . . . . . . . . .45
Stacking Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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