mc68hc05p18a Freescale Semiconductor, Inc, mc68hc05p18a Datasheet - Page 11

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mc68hc05p18a

Manufacturer Part Number
mc68hc05p18a
Description
Mc68hc05p18a Hcmos Microcontroller Unit
Manufacturer
Freescale Semiconductor, Inc
Datasheet
Technical Data — MC68HC05P18A
MC68HC05P18A
Figure
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Freescale Semiconductor, Inc.
For More Information On This Product,
MC68HC05P18A Block Diagram . . . . . . . . . . . . . . . . . . . . . . .17
User Mode Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Oscillator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
MC68HC05P18A User Mode Memory Map . . . . . . . . . . . . . . .27
MC68HC05P18A I/O and Control Registers
I/O and Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Index Register (X). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Stack Pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Condition Code Register (CCR) . . . . . . . . . . . . . . . . . . . . . . . .37
Interrupt Processing Flowchart . . . . . . . . . . . . . . . . . . . . . . . . .41
Reset Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
COP Register (COPR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Stop, Halt, and Wait Modes Flowchart . . . . . . . . . . . . . . . . . . .51
Port A I/O Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Port B I/O Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Port C I/O Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Port D I/O Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Go to: www.freescale.com
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