80960CF-33 datasheet(5/77 Pages) INTEL

5 / 77 page

PRELIMINARY

CONTENTS

Figure 40.

Using External READY ............................................................................................................ 63

Figure 41.

Terminating a Burst with BTERM ............................................................................................. 64

Figure 42.

BOFF Functional Timing .......................................................................................................... 65

Figure 43.

HOLD Functional Timing .......................................................................................................... 66

Figure 44.

DREQ and DACK Functional Timing ....................................................................................... 67

Figure 45.

EOP Functional Timing ............................................................................................................ 67

Figure 46.

Terminal Count Functional Timing ........................................................................................... 68

Figure 47.

FAIL Functional Timing ............................................................................................................ 68

Figure 48.

A Summary of Aligned and Unaligned Transfers for Little Endian Regions ............................. 69

Figure 49.

A Summary of Aligned and Unaligned Transfers for Little Endian Regions (Continued) ......... 70

Figure 50.

Idle Bus Operation ................................................................................................................... 71

TABLES

Table 1.

80960CF Instruction Set ............................................................................................................ 4

Table 2.

80960CF Pin Description — External Bus Signals .................................................................... 6

Table 3.

80960CF Pin Description — Processor Control Signals ............................................................ 9

Table 4.

80960CF Pin Description — DMA and Interrupt Unit Control Signals ..................................... 11

Table 5.

80960CF PGA Pinout — In Signal Order ................................................................................ 14

Table 6.

80960CF PGA Pinout — In Pin Order ..................................................................................... 15

Table 7.

80960CF PQFP Pinout — In Signal Order (80960CF-33, -25, -16 Only) ................................ 17

Table 8.

80960CF PQFP Pinout — In Pin Order (80960CF-33, -25, -16 Only) ..................................... 18

Table 9.

Maximum TA at Various Airflows in

oC (PGA Package Only) ................................................... 20

Table 10.

80960CF PGA Package Thermal Characteristics ................................................................... 21

Table 11.

80960CF PQFP Package Thermal Characteristics ................................................................. 21

Table 12.

Die Stepping Cross Reference ................................................................................................ 22

Table 13.

Operating Conditions ............................................................................................................... 23

Table 14.

DC Characteristics ................................................................................................................... 24

Table 15.

80960CF AC Characteristics (40 MHz) ................................................................................... 26

Table 16.

80960CF AC Characteristics (33 MHz) ................................................................................... 29

Table 17.

80960CF AC Characteristics (25 MHz) ................................................................................... 32

Table 18.

80960CF AC Characteristics (16 MHz) ................................................................................... 34

Table 19.

Reset Conditions ..................................................................................................................... 43

Table 20.

Hold Acknowledge and Backoff Conditions ............................................................................. 43

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