8088: Difference between revisions

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     A11 | 5    36| A18 S5
     A11 | 5    36| A18 S5
     A10 | 6    35| A19 S6
     A10 | 6    35| A19 S6
     A9 | 7    34| /SS0 (High)
     A9 | 7    34| *SS0 (High)
     A8 | 8    33| MN /MX
     A8 | 8    33| MN/*MX
     AD7 | 9    32| /RD
     AD7 | 9    32| *RD
     AD6 |10    31| HOLD (/RQ /GT0)
     AD6 |10    31| HOLD (*RQ/*GT0)
     AD5 |11    30| HLDA (/RQ /GT1)
     AD5 |11    30| HLDA (*RQ/*GT1)
     AD4 |12    29| /WR (/LOCK)
     AD4 |12    29| *WR (*LOCK)
     AD3 |13    28| IO /M (/S2)
     AD3 |13    28| IO/*M (*S2)
     AD2 |14    27| DT /R (/S1)
     AD2 |14    27| DT/*R (*S1)
     AD1 |15    26| /DEN (/S0)
     AD1 |15    26| *DEN (*S0)
     AD0 |16    25| ALE (QS0)
     AD0 |16    25| ALE (QS0)
     NMI |17    24| /INTA (QS1)
     NMI |17    24| *INTA (QS1)
   INTR |18    23| /Test
   INTR |18    23| *Test
     CLK |19    22| Ready
     CLK |19    22| Ready
     GND |20    21| Reset
     GND |20    21| Reset
Line 29: Line 29:


=Frequency=
=Frequency=
Frequency: set reader to FREQ, put black probe to GND, red probe to 19 to measure CPU clock<br>
Set reader to FREQ, put black probe to GND, red probe to 19 to measure CPU clock<br>


=External links=
=External links=

Revision as of 13:24, 29 September 2009

8-bit Microprocessor

Pinout

DIP40
        +---\/---+
    GND | 1    40| Vcc
    A14 | 2    39| A15
    A13 | 3    38| A16 S3
    A12 | 4    37| A17 S4
    A11 | 5    36| A18 S5
    A10 | 6    35| A19 S6
     A9 | 7    34| *SS0 (High)
     A8 | 8    33| MN/*MX
    AD7 | 9    32| *RD
    AD6 |10    31| HOLD (*RQ/*GT0)
    AD5 |11    30| HLDA (*RQ/*GT1)
    AD4 |12    29| *WR (*LOCK)
    AD3 |13    28| IO/*M (*S2)
    AD2 |14    27| DT/*R (*S1)
    AD1 |15    26| *DEN (*S0)
    AD0 |16    25| ALE (QS0)
    NMI |17    24| *INTA (QS1)
   INTR |18    23| *Test
    CLK |19    22| Ready
    GND |20    21| Reset
        +--------+

Frequency

Set reader to FREQ, put black probe to GND, red probe to 19 to measure CPU clock

External links

8088 page on Wikipedia
8088 page on CPU-World

Files