MC68HC705V12CFN MOTOROLA [Motorola, Inc], MC68HC705V12CFN Datasheet - Page 17

• Manufacturer Part Number: MC68HC705V12CFN
• Description: The Motorola microcontroller
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC705V12
MOTOROLA
Advance Information—MC68HC705V12
—
Rev. 3.0
Figure
1-1
1-2
1-3
1-4
1-5
2-1
2-2
2-3
2-4
3-1
3-2
3-3
3-4
3-5
3-6
4-1
4-2
4-3
4-4
5-1
5-2
5-3
6-1
6-2
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
List of Figures
Title
List of Figures
Advance Information
Page
17