iii

LIST OF FIGURES

PAGE

Figure 1

The 80960SB Processor’s Highly Parallel Architecture ................................................................ 0

Figure 2

80960SB Programming Environment ........................................................................................... 1

Figure 3

Instruction Formats ...................................................................................................................... 4

Figure 4

Multiple Register Sets Are Stored On-Chip .................................................................................. 6

Figure 5

Connection Recommendation for LOCK .................................................................................... 11

Figure 6

Typical Supply Current vs. Case Temperature ........................................................................... 12

Figure 7

Typical Current vs. Frequency (Room Temp) ............................................................................. 12

Figure 8

Typical Current vs. Frequency (Hot Temp) ................................................................................. 13

Figure 9

Capacitive Derating Curve ......................................................................................................... 13

Figure 10

Test Load Circuit for Three-State Output Pins ............................................................................ 13

Figure 11

Drive Levels and Timing Relationships for 80960SB Signals ..................................................... 15

Figure 12

Processor Clock Pulse (CLK2) ................................................................................................... 18

Figure 13

RESET Signal Timing ................................................................................................................. 18

Figure 14

HOLD Timing .............................................................................................................................. 19

Figure 15

80-Lead EIAJ Quad Flat Pack (QFP) Package .......................................................................... 20

Figure 16

84-Lead Plastic Leaded Chip Carrier (PLCC) Package ............................................................. 21

Figure 17

Non-Burst Read and Write Transactions Without Wait States .................................................... 27

Figure 18

Quad Word Burst Read Transaction With 1, 0, 0, 0, 0, 0, 0, 0 Wait States ................................ 28

Figure 19

Burst Write Transaction With 2, 1, 1, 1 Wait States (6-8 Bytes Transferred) .............................. 29

Figure 20

Accesses Generated by Quad Word Read Bus Request,

Misaligned One Byte from Quad Word Boundary 1, 0, 0, 0, 0, 0, 0, 0 Wait States

30

Figure 21

Interrupt Acknowledge Cycle ...................................................................................................... 31

Figure 22

Cold Reset Waveform ................................................................................................................ 32

LIST OF TABLES

Table 1

80960SB Instruction Set .............................................................................................................. 3

Table 2

Memory Addressing Modes ......................................................................................................... 4

Table 3

Sample Floating-Point Execution Times (

µs) at 16 MHz ..............................................................6

Table 4

80960SB Pin Description: Bus Signals ........................................................................................ 8

Table 5

80960SB Pin Description: Support Signals ................................................................................ 10

Table 6

DC Characteristics ..................................................................................................................... 14

Table 7

80960SB AC Characteristics (10 MHz) ...................................................................................... 16

Table 8

80960SB AC Characteristics (16 MHz) ...................................................................................... 17

Table 9

80960SB QFP Pinout — In Pin Order ........................................................................................ 22

Table 10

80960SB QFP Pinout — In Signal Order ................................................................................... 23

Table 11

80960SB PLCC Pinout — In Pin Order ...................................................................................... 24

Table 12

80960SB PLCC Pinout — In Signal Order ................................................................................. 25

Table 13

80960SB QFP Package Thermal Characteristics ...................................................................... 26

Table 14

80960SB PLCC Package Thermal Characteristics .................................................................... 26