mc68hc705v12 Freescale Semiconductor, Inc, mc68hc705v12 Datasheet - Page 17

• Manufacturer Part Number: mc68hc705v12
• Description: M68hc05-based Mcu Hc05 Freescale Semiconductor
• Manufacturer: Freescale Semiconductor, Inc

MC68HC705V12
Advance Information—MC68HC705V12
—
Rev. 3.0
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Freescale Semiconductor, Inc.
For More Information On This Product,
MC68HC705V12 Block Diagram . . . . . . . . . . . . . . . . . . . . .26
Pin Assignments (68-Pin PLCC Package) . . . . . . . . . . . . . .28
Oscillator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Supply Decoupling Diagram. . . . . . . . . . . . . . . . . . . . . . . . .35
Single-Sided PCB Example . . . . . . . . . . . . . . . . . . . . . . . . .36
MC68HC705V12 Single-Chip Mode Memory Map. . . . . . . .38
MC68HC705V12 I/O Registers Memory Map . . . . . . . . . . .39
I/O and Control Registers. . . . . . . . . . . . . . . . . . . . . . . . . . .40
Miscellaneous Register (MISC) . . . . . . . . . . . . . . . . . . . . . .48
Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Index Register (X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Stack Pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Condition Code Register (CCR) . . . . . . . . . . . . . . . . . . . . . .53
Interrupt Processing Flowchart. . . . . . . . . . . . . . . . . . . . . . .58
IRQ Function Block Diagram . . . . . . . . . . . . . . . . . . . . . . . .60
IRQ Status and Control Register (ISCR) . . . . . . . . . . . . . . .62
External Interrupts Timing Diagram . . . . . . . . . . . . . . . . . . .64
Reset Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Reset and POR Timing Diagram . . . . . . . . . . . . . . . . . . . . .70
COP Watchdog Timer Location . . . . . . . . . . . . . . . . . . . . . .73
Stop Recovery Timing Diagram . . . . . . . . . . . . . . . . . . . . . .77
Stop/Wait Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Go to: www.freescale.com
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