mc68hc916y3 Freescale Semiconductor, Inc, mc68hc916y3 Datasheet - Page 18

• Manufacturer Part Number: mc68hc916y3
• Description: Mc68hc16y3 16 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

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MC68HC16Y3/916Y3
USER’S MANUAL
MC68HC16Y3 Block Diagram ........................................................................ 3-4
MC68HC916Y3 Block Diagram ...................................................................... 3-5
MC68HC16Y3 Pin Assignment for 160-Pin Package ..................................... 3-6
MC68HC916Y3 Pin Assignment for 160-Pin Package ................................... 3-7
Address Bus Connections Between the CPU16 and IMB ............................ 3-17
MC68HC16Y3 Address Map ........................................................................ 3-19
MC68HC916Y3 Address Map ...................................................................... 3-20
MC68HC16Y3 Combined Program and Data Space Map ........................... 3-22
MC68HC16Y3 Separate Program and Data Space Map ............................. 3-23
MC68HC916Y3 Combined Program and Data Space Map ......................... 3-24
MC68HC916Y3 Separate Program and Data Space Map ........................... 3-25
CPU16 Register Model ................................................................................... 4-2
Condition Code Register ................................................................................ 4-4
Data Types and Memory Organization ........................................................... 4-8
Basic Instruction Formats ............................................................................. 4-34
Instruction Execution Model ......................................................................... 4-35
BDM Serial I/O Block Diagram ..................................................................... 4-45
BDM Connector Pinout ................................................................................. 4-45
SCIM2 Block Diagram .................................................................................... 5-2
System Clock Block Diagram ......................................................................... 5-5
Slow Reference Crystal Circuit ....................................................................... 5-6
Fast Reference Crystal Circuit ....................................................................... 5-6
System Clock Filter Networks ........................................................................ 5-7
LPSTOP Flowchart ....................................................................................... 5-15
System Protection ........................................................................................ 5-16
Periodic Interrupt Timer and Software Watchdog Timer .............................. 5-19
MCU Basic System ...................................................................................... 5-22
Operand Byte Order ..................................................................................... 5-26
Word Read Cycle Flowchart ......................................................................... 5-30
Write Cycle Flowchart .................................................................................. 5-31
CPU Space Address Encoding .................................................................... 5-33
Breakpoint Operation Flowchart ................................................................... 5-34
LPSTOP Interrupt Mask Level ...................................................................... 5-35
Bus Arbitration Flowchart for Single Request ............................................... 5-39
Preferred Circuit for Data Bus Mode Select Conditioning ............................ 5-44
Alternate Circuit for Data Bus Mode Select Conditioning ............................. 5-45
Power-On Reset ........................................................................................... 5-54
Basic MCU System ...................................................................................... 5-61
Chip-Select Circuit Block Diagram ............................................................... 5-62
CPU Space Encoding for Interrupt Acknowledge ......................................... 5-68
Port F Block Diagram ................................................................................... 5-73
Freescale Semiconductor, Inc.
For More Information On This Product,
LIST OF ILLUSTRATIONS
Go to: www.freescale.com
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