AMD-K6-2E/400AFR AMD [Advanced Micro Devices], AMD-K6-2E/400AFR Datasheet - Page 5

• Manufacturer Part Number: AMD-K6-2E/400AFR
• Manufacturer: AMD [Advanced Micro Devices]

22529B/0—January 2000
Contents
1
2
3
4
5
Contents
1.1
1.2
1.3
2.1
2.2
2.3
2.4
2.5
2.6
3.1
3.2
3.3
3.4
3.5
3.6
3.7
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
5.14
5.15
5.16
5.17
5.18
5.19
5.20
Revision History.......................................................................... xv
About this Data Sheet...............................................................xvii
AMD-K6™-2E Processor .............................................................. 1
Internal Architecture .................................................................. 7
Software Environment ............................................................... 23
Logic Symbol Diagram ............................................................... 83
Signal Descriptions .................................................................... 85
Overview ................................................................................. xvii
AMD-K6™-2E Embedded Processor Features ......................... 2
Process Technology..................................................................... 4
Super7™ Platform Initiative ..................................................... 4
AMD-K6™-2E Processor Microarchitecture Overview ........... 7
Cache, Instruction Prefetch, and Predecode Bits.................. 12
Instruction Fetch and Decode ................................................. 13
Centralized Scheduler .............................................................. 17
Execution Units......................................................................... 18
Branch-Prediction Logic........................................................... 20
Registers .................................................................................... 23
Model-Specific Registers (MSR) ............................................. 40
Memory Management Registers.............................................. 47
Paging......................................................................................... 49
Descriptors and Gates .............................................................. 52
Exceptions and Interrupts ....................................................... 55
Instructions Supported by the AMD-K6™-2E Processor ...... 56
Signal Terminology................................................................... 85
A20M# (Address Bit 20 Mask) ................................................. 86
A[31:3] (Address Bus)............................................................... 87
ADS# (Address Strobe) ............................................................ 88
ADSC# (Address Strobe Copy) ................................................ 88
AHOLD (Address Hold) ........................................................... 89
AP (Address Parity).................................................................. 90
APCHK# (Address Parity Check)............................................ 91
BE[7:0]# (Byte Enables) ........................................................... 92
BF[2:0] (Bus Frequency) .......................................................... 93
BOFF# (Backoff) ....................................................................... 94
BRDY# (Burst Ready)............................................................... 95
BRDYC# (Burst Ready Copy) .................................................. 96
BREQ (Bus Request)................................................................. 96
CACHE# (Cacheable Access) .................................................. 97
CLK (Clock) ............................................................................... 97
D/C# (Data/Code) ...................................................................... 98
D[63:0] (Data Bus)..................................................................... 99
DP[7:0] (Data Parity).............................................................. 100
EADS# (External Address Strobe)........................................ 101
AMD-K6™-2E Processor Data Sheet
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