MC68881 floating-point coprocessor user's manual / Motorola Inc.

Content

Section 1
General description
1.1 The coprocessor concept
1.2 Hardware overview
1.3 Operand data formats
1.4 Instruction set
1.5 Addressing modes

Section 2
Programming Model
2.1 Programming Model
2.1.1 Floating -point data registers
2.1.2 Floating-point
2.1.3 Floating-point status registers
etc.

Section 3
Instruction set
3.1 Instruction set summary
3.2 Computational accuracy
3.3 Conditional test definitions
3.4 Detailed instruction descriptions
etc.

Section 4
Exception processing
4.1 MC68881 Detected exceptions
Exception vectors
Instruction exceptions and traps
Illegal command words
etc.

Section 5
Coprocessor Interface
5.1 Coprocessor interface signal connection
5.1.1 Chip-select decode
5.1.2 Coprocessor interface registers
5.1.3 Interprocessor transfers
5.2 Coprocessor instructions
etc.

Section 6
Instruction execution timing
6.1 Factors affecting execution times
6.2 Concurrent instruction execution
6.3 Interrupt latency times
6.4 Coprocessor interface overhead
etc.

Section 7
Functional signal descriptions
7.1 Address bus ( A0 through A4 )
7.2 Data Bus (Do through D31 )
7.3 Size (SIZE )
7.4 Address stobe (AS )
etc.

Section 8
Bus Operation
8.1 Basic transfer Mechanism overview
8.2 Reset operation
8.3 Bus cycle functional descriptions
etc.

Section 9
Interfacing Methods
9.1 MC68881-MC68020 Interfacing
9.2 MC68881-MC68000/MC68008/MC68010/MC68012 Interfacing
9.3 Peripheral processor operation

Section 10
10.1 Maximum ratings
10.2 Thermal characteristics
10.3 Power considerations
10.4 DC Electrical characteristics
10.5 AC Electrical characteristics-clock input
10.6 AC Electrical characteristics-Read and write cycles

Section 11
Ordering information and mechanical data
11.1 Standard MC68881 Ordering information
11.2 Pin assignment
11.3 Package dimensions

Includes index.