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AMD-K6 Datasheet(PDF) 5 Page - Advanced Micro Devices

Part # AMD-K6
Description  AMD-K6 Processor
PDF  346 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AMD-K6 Datasheet(HTML) 5 Page - Advanced Micro Devices

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Contents
v
20695H/0—March 1998
AMD-K6® Processor Data Sheet
Preliminary Information
5.39
RESET (Reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
5.40
RSVD (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
5.41
SCYC (Split Cycle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5.42
SMI# (System Management Interrupt) . . . . . . . . . . . . . . . . 111
5.43
SMIACT# (System Management Interrupt Active) . . . . . . 112
5.44
STPCLK# (Stop Clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
5.45
TCK (Test Clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
5.46
TDI (Test Data Input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
5.47
TDO (Test Data Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
5.48
TMS (Test Mode Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
5.49
TRST# (Test Reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
5.50
VCC2DET (VCC2 Detect) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
5.51
W/R# (Write/Read) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
5.52
WB/WT# (Writeback or Writethrough) . . . . . . . . . . . . . . . . 116
6
Bus Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
6.1
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
6.2
Bus State Machine Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 123
Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Data-NA# Requested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Pipeline Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Pipeline Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
6.3
Memory Reads and Writes . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Single-Transfer Memory Read and Write . . . . . . . . . . . . . . . 126
Misaligned Single-Transfer Memory Read and Write . . . . . 128
Burst Reads and Pipelined Burst Reads . . . . . . . . . . . . . . . . 130
Burst Writeback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
6.4
I/O Read and Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Basic I/O Read and Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Misaligned I/O Read and Write . . . . . . . . . . . . . . . . . . . . . . . 135
6.5
Inquire and Bus Arbitration Cycles . . . . . . . . . . . . . . . . . . . 136
Hold and Hold Acknowledge Cycle . . . . . . . . . . . . . . . . . . . . 136
HOLD-Initiated Inquire Hit to Shared or Exclusive
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
HOLD-Initiated Inquire Hit to Modified Line . . . . . . . . . . . 140
AHOLD-Initiated Inquire Miss. . . . . . . . . . . . . . . . . . . . . . . . 142
AHOLD-Initiated Inquire Hit to Shared or Exclusive
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
AHOLD-Initiated Inquire Hit to Modified Line . . . . . . . . . . 146
AHOLD Restriction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Bus Backoff (BOFF#) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Locked Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Basic Locked Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Locked Operation with BOFF# Intervention . . . . . . . . . . . . 154
Interrupt Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156



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