MC68HC705J MOTOROLA [Motorola, Inc], MC68HC705J Datasheet - Page 15

• Manufacturer Part Number: MC68HC705J
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC705J1A — Rev. 4.0
MOTOROLA
Technical Data — MC68HC705J1A
Figure
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
2-1
2-2
2-3
2-4
3-1
3-2
3-3
3-4
3-5
3-6
4-1
4-2
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Bypassing Layout Recommendation . . . . . . . . . . . . . . . . . . 26
Crystal Connections with
Crystal Connections without
Ceramic Resonator Connections
Ceramic Resonator Connections
External Clock Connections . . . . . . . . . . . . . . . . . . . . . . . . . 30
Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
EPROM Programming Register (EPROG). . . . . . . . . . . . . . 39
Mask Option Register (MOR) . . . . . . . . . . . . . . . . . . . . . . . .41
Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Index Register (X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Stack Pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Condition Code Register (CCR) . . . . . . . . . . . . . . . . . . . . . . 50
Reset Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Power-On Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Oscillator Internal Resistor Mask Option . . . . . . . . . . . . . 28
Oscillator Internal Resistor Mask Option . . . . . . . . . . . . . 28
with Oscillator Internal Resistor Mask Option . . . . . . . . . 29
without Oscillator Internal Resistor Mask Option. . . . . . . 29
List of Figures
Title
List of Figures
Technical Data
Page
15