9/29/95
SECTION 1: OVERVIEW
UM Rev 1
MOTOROLA
M68020 USER’S MANUAL
xiii
TABLE OF CONTENTS (Concluded)
Paragraph
Page
Number
Title
Number
9.4
Clock Driver.............................................................................................9-10
9.5
Memory Interface ....................................................................................9-11
9.6
Access Time Calculations .......................................................................9-12
9.7
Module Support .......................................................................................9-14
9.7.1
Module Descriptor................................................................................9-14
9.7.2
Module Stack Frame ........................................................................... 9-16
9.8
Access Levels .........................................................................................9-17
9.8.1
Module Call..........................................................................................9-18
9.8.2
Module Return .....................................................................................9-19
Section 10
Electrical Characteristics
10.1
Maximum Ratings .................................................................................10-1
10.2
Thermal Considerations ........................................................................ 10-1
10.2.1
MC68020 Thermal Characteristics and
DC Electrical Characteristics ...........................................................10-2
10.2.2
MC68EC020 Thermal Characteristics and
DC Electrical Characteristics ...........................................................10-4
10.3
AC Electrical Characteristics .................................................................10-5
Section 11
Ordering Information and Mechanical Data
11.1
Standard Ordering Information..............................................................11-1
11.1.1
Standard MC68020 Ordering Information..........................................11-1
11.1.2
Standard MC68EC020 Ordering Information ....................................11-1
11.2
Pin Assignments and Package Dimensions ..........................................11-2
11.2.1
MC68020 RC and RP Suffix—Pin Assignment .................................11-2
11.2.2
MC68020 RC Suffix—Package Dimensions ..................................... 11-3
11.2.3
MC68020 RP Suffix—Package Dimensions......................................11-4
11.2.4
MC68020 FC and FE Suffix—Pin Assignment .................................. 11-5
11.2.5
MC68020 FC Suffix—Package Dimensions ......................................11-6
11.2.6
MC68020 FE Suffix—Package Dimensions ......................................11-7
11.2.7
MC68EC020 RP Suffix—Pin Assignment..........................................11-8
11.2.8
MC68EC020 RP Suffix—Package Dimensions .................................11-9
11.2.9
MC68EC020 FG Suffix—Pin Assignment..........................................11-10
11.2.10
MC68EC020 FG Suffix—Package Dimensions .................................11-11
Appendix A
Interfacing an MC68EC020 to a DMA Device That
Supports a Three-Wire Bus Arbitration Protocol
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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