Contents

iii

80960KB

EMBEDDED 32-BIT MICROPROCESSOR

1.0 THE i960® PROCESSOR .......................................................................................................................... 1

1.1 Key Performance Features ................................................................................................................. 2

1.1.1 Memory Space And Addressing Modes ................................................................................... 4

1.1.2 Data Types ............................................................................................................................... 4

1.1.3 Large Register Set ................................................................................................................... 4

1.1.4 Multiple Register Sets .............................................................................................................. 5

1.1.5 Instruction Cache ..................................................................................................................... 5

1.1.6 Register Scoreboarding ........................................................................................................... 5

1.1.7 High Bandwidth Local Bus ....................................................................................................... 6

1.1.8 Interrupt Handling .................................................................................................................... 6

1.1.9 Debug Features ....................................................................................................................... 6

1.1.10 Fault Detection ....................................................................................................................... 7

1.1.11 Built-in Testability ................................................................................................................... 7

2.0 ELECTRICAL SPECIFICATIONS ............................................................................................................ 10

2.1 Power and Grounding ....................................................................................................................... 10

2.2 Power Decoupling Recommendations ............................................................................................. 10

2.3 Connection Recommendations ........................................................................................................ 11

2.4 Characteristic Curves ....................................................................................................................... 11

2.5 Test Load Circuit ............................................................................................................................... 14

2.7 DC Characteristics ............................................................................................................................ 15

2.6 Absolute Maximum Ratings .............................................................................................................. 15

2.8 AC Specifications ............................................................................................................................. 16

2.8.1 AC Specification Tables ......................................................................................................... 17

3.0 MECHANICAL DATA ................................................................................................................................ 21

3.1 Packaging ......................................................................................................................................... 21

3.1.1 Pin Assignment ...................................................................................................................... 21

3.2 Pinout ............................................................................................................................................... 25

3.3 Package Thermal Specification ........................................................................................................ 29

4.0 WAVEFORMS .......................................................................................................................................... 33

5.0 REVISION HISTORY ............................................................................................................................... 38