 SU.HARDW.PC.CPU (2:5020/299)  SU.HARDW.PC.CPU 
 From : Vladimir Lanko                      2:461/55.51     Thu 06 Apr 95 11:52 
 Subj : Am486 dx4 3.3-Volt Processor                                            

- pᨫ 殪 pp. p ⠭᪨ p. p ⮣
 p᭠ p   TI486sxlc/sxl/slc/dlc,dlc; 
Python Chipset for Pentium Processors 82C546/82C547
Cobra Chipset for Pentium Processors 82C596/82C597
Viper-DP Desktop Chipset for the 3.3V pentium Processor, M1 and K5 Processors.
⠪    室.   砫 殪 ᠡ  p
뢮.   ᫥.
Ŀ
  1  2  3  4  5  6  7  8  9  10 11 12 13 14  15  16  17 
Ĵ
          VOL                                       --- 
SA27A26A23DETA14VssA12VssVssVssVssVssA10Vss A6  A4  ADS 
Ĵ
                                                -----    
RA28A25VccVssA18VccA15VccVccVccVccA11A8 Vcc A3  BLAST INC
Ĵ
                                                ----- ----
QA31VssA17A19A21A24A22A20A16A13A9 A5 A7 A2  BREQPLOCK PCHK
Ĵ
                                                                  
PD0 A29A30                                            HLDAVcc Vss 
Ĵ                                            Ĵ
                                                      ----   -  - 
ND2 D1 DP0                                            LOCKM/IOW/R 
Ĵ                                            Ĵ
                                                        -         
MVssVccD4                                             D/C Vcc Vss 
Ĵ                                            Ĵ
                                                                  
LVssD6 D7                                             PWT Vcc Vss 
Ĵ                                            Ĵ
                                                      ---         
KVssVccD14                                            BE0 Vcc Vss 
Ĵ                                            Ĵ
                                                      --- ---     
JINCD5 D16                                            BE2 BE1 PCD 
Ĵ                                            Ĵ
                                                      ----        
HVssD3 DP2                                            BRDYVcc Vss 
Ĵ                                            Ĵ
                                                                  
GVssVccD12                                            INC Vcc Vss 
Ĵ                                            Ĵ
                                                      --- --- --- 
FDP1D8 D15                                            KEN RDY BE3 
Ĵ                                            Ĵ
                                                                  
EVssVccD10                                            HOLDVcc Vss 
Ĵ                                            Ĵ
                                                      ------- ----
DD9 D13D17                                            A20MBS8 BOFF
Ĵ
                               --       --------- RE ----
CD11D18CLKVccVccD27D26D28D30INCUP INCNC FERRFLUSH SETBS16
Ĵ
                                     CLK            ----
BD19D21VssVssVssD25VccD31VccINCVccINCMULTMS NMI TDO EADS
Ĵ
                                            -----     AH 
AD20D22TCKD23DP3D24VssD29VssINCVssINCINCTDI IGNNE INTR OLD
Ĵ
 \ 1  2  3  4  5  6  7  8  9  10 11 12 13 14  15  16  17 
  

with best regards, Vladimir

--- GoldED 2.42.G0614+
 * Origin: +++                  +++ (FidoNet 2:461/55.51)
 SU.HARDW.PC.CPU (2:5020/299)  SU.HARDW.PC.CPU 
 From : Aleksandr Konosevich                2:5004/9.7      Wed 05 Apr 95 14:13 
 Subj : x2 or x3 ?                                                              


 ⢥  p, p  ᯮ ... ;)

----------------------------------------------------------------------------

Aleksandr,

The 3v Am486 has the CLKMUL pin on B13. If that pin is left to float
or is strapped high, the processor will work in 3X mode. you need
to look at the state of B13 at the falling edge of RESET. that will
tell you how the processor will be configured for operation. If you
want it to operate in 2X mode, B13 will need to be low when the processor
comes out of RESET. It is true that there may be some devices that
fail at 3X-100, but will work at 3X-75, 2X-80, 2X-66.
 I hope that will help.

Take care,
Fred

-------------------------------------------------------------------------------
---
 * Origin:  sun@univer.omsk.su  (2:5004/9.7)

 SU.HARDW.PC.CPU (2:5020/299)  SU.HARDW.PC.CPU 
 From : Vladimir Lanko                      2:461/55.51     Mon 10 Apr 95 05:50 
 Subj : Am486 dx4 3.3-Volt Processor                                            


Friday April 07 1995, Dmitry Tomashik writes to Vladimir Lanko:

 VL>>            VOL         
 VL>>  SA27A26A23DETA14VssA12
 DT>     ?^^^

 㤮⢨ ⢥:
VOLDET
Voltage Detect (Output)
The voltage detect signel allows external system logic to distinguish
between a 5-V Am486 processor and the 3.3-V Am486DX4 processor. The
signel is active Low for a 3.3-V Am486DX4 processor.
p  㬥樨 AMD  p 1994.
with best regards, Vladimir

--- GoldED 2.42.G0614+
 * Origin: +++                  +++ (FidoNet 2:461/55.51)

 SU.HARDW.PC.CPU (2:5020/299)  SU.HARDW.PC.CPU 
 From : Yuri Aulow                          2:5020/373.66   Fri 06 Sep 96 12:14 
 Subj : AMD - 殪                                                         

ࠢ, ᫥ All!

=====================================================================

                      ஭ 뢮:

         1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17
       Ŀ
     S  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  S
     R  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  R
     Q  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Q
     P  .  .  .                                   .  .  .  P
     N  .  .  .                                   .  .  .  N
     M  .  .  .                                   .  .  .  M
     L  .  .  .                                   .  .  .  L
     K  .  .  .                                   .  .  .  K
     J  .  .  .                                   .  .  .  J
     H  .  .  .                                   .  .  .  H
     G  .  .  .                                   .  .  .  G
     F  .  .  .                                   .  .  .  F
     E  .  .  .                                   .  .  .  E
     D  .  .  .                                   .  .  .  D
     C  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  C
     B  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  B
     A  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  A
       \
         1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17

        (᪠   室 ⨢ 뢮 A1)


H  ( ஢ AMD):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

S4  室   㪠⥫ 殮 ⠭ (5  3.45).  ⨢⮢
             - 㤠  .  墮⮢ - 祭
             .

R17 室    ===  SL-Enhanced ஢: ===
            0 - 㬭 ⠪⮢   2 (DX4)   4 (5x)
            1 (  樨) - 㬭 ⠪⮢   3 (DX4)

B13 室    ===  SL-Enhanced ஢: ===
            0 - ७  WT (Write Through) ( ᪢)
            1 (  樨) - ७  WB (Write Back)
                                                  (ਧ )
B13 室    ===   ஢: ===
            0 - 㬭 ⠪⮢   2 (DX2,DX4)
            1 - 㬭 ⠪⮢   3 (DX4)

 :  A7  A9  A11     B3  B4  B5
                E1  E17 G1  G17 H1  H17 K1  K17  L1  L17  M1  M17
                P17 Q2  R4
                S6  S8  S9  S10 S11 S12 S14

H ⠭:   B7  B9  B11 C4  C5  E2  E16 G2  G16 H16
                J1  K2  K16 L16 M2  M16 P16 R3  R6  R8  R9  R10 R11 R14

 ࠧ:

- ⮡ ⠢  ⢥,    R17  P17
  (। ⨬  㡥,     R17  ᠦ
  - ஬ אַ  ⠭).

- ⮡  ७   ० WT (⮡  稫 ᪮),
     B13  A11 (। ⨬  筮 㡥).

H P17  A11 ࠭ 室    ६窨
(ﭨ 砩襥).

!!!  :  SL-Enhanced      B13
    ᯮ -ࠧ!

======================================================================

                                     㢠ﬨ, Yuri Aulow.
--- Blue Wave/RA v2.12
 * Origin: AISt Users (2:5020/373.66)


