MC68030 Datasheet, PDF (426/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Coprocessor Interface Description
Table 10-6. Exceptions Related to Primitive Processing (Sheet 1 of 2)
Primitive
Busy
NULL
Supervisory Check*
Other: Priveledge Violation if “S” Bit =0
Transfer Operation Word*
Transfer From Instruction Seam*
Protocol: If Length Field is Odd (Zero Length Legal)
Evaluate and Transfer Effective Address
Protocol: If Used with Conditional Instruction
F-Line: If EA in OP - Word is NOT Control Alterable
Evaluate Effective Address and Transfer DataProtocol:
1. If Used with Conditional Instructions
2. Length is Not 1, 2, or 4 and EA=Register Direct
3. If EA=Immediate and Length Odd and Greater Than 1
4. Attempt to Write to Nonalterable Address Even if Address
Declared Legal in Primitive
F-Line: Valid EA Field Does Not Match EA in Op-Word
Write to Previously Evaluated Effective Address
Protocol: If Used with Conditional Instruction
Busy
Take Address and Transfer Data*
Transfer To/From Top of Stack*
Protocol: Length Field Other Than 1, 2, or 4
Transfer To/From Main Processor Register*
Transfer To/From Main Processor Control Register
Protocol: Invalid Control Register Select Code
Transfer Multiple Main Processor Registers*
Transfer Multiple Coprocessor Registers
Protocol:
1. If Used with Conditional Instructions
2 .Odd Length Value
F-Line:
1. EA Not Control Alterable or (An);pl for CP to Memory Transfer
2. EA Not Control Alterable or —(An) for Memory to CP Transfer
Protocol F-Line
X
X
X
X
X
X
X
X
X
X
Other
X
10-66
MC68030 USER’S MANUAL
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