FloatingPointSystems/FPS Board List.txt at main · VodaCode-Official/FloatingPointSystems · GitHub

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Part No. Breakdown
N### = FPS identification number?
     * N612 is used on board stiffener
     * N412 is used on silkscreen
4### = Board series number
     * All boards are either 42##, 43##, 44##, or 48##
###L = Revision number
     * Some boards have just a number, some have the extra letter

There are two different card edge connectors depending on the board
2x 100-pin = 200-pin with 0.125" pitch
2x 120-pin = 240-pin with 0.100" pitch

For clarity, only the Board Series Number will be listed below


Series    Name           Function
2221      AP/VAX I/F     Vax 11-780 Interface
2266      TM             ROM & RAM

Series    Name           Function
4200      DATA PAD       Data Pad Left and Right
4201      S PAD          Scratch Pad
4202      MDREG          Main Data Register
4203      FADD 1         Floating Adder 1
4204      FADD 2         Floating Adder 2
4205      FADD 3         Floating Adder 3
4206      FMUL A         Floating Multiplier A
4207      FMUL B         Floating Multiplier B
4208      FMUL C         Floating Multiplier C
4209      TMREG          Table Memory Register
4210      CB1            Control Buffer 1
4211      CB2            Control Buffer 2
4212      ADDR           Address
4213      MIREG          Memory Input Register
4214      EXPAN          Expansion of CB1
4217      TM ROM
4219      GP+NOVA I/F    General Purpose Interface
4226      FMT M          Format Mantissa
4227      FMT E          Format Exponent
4236      PS RAM 2K      Program Source RAM
4238      TM RAM         Table Memory RAM
4244      MAIN DATA      Data in from Host and to Host
4246      ???            ???
4274      PASPAR         ??
4275      IRP 1
4276      IRP 2

Series    Name           Function
4324      CPROC CTRLR
4329      FIFO/FPROC/CTRL
4330      FIFO
4353      ???            ???
4354      ???            ???
4377      ???            ???

Series    Name           Function
4401      FA             Floating Adder
4402      DATA PAD       Data Pad
4408      P3             Processor 3
4421      PDP 11 I/F     PDP 11 Interface
4422      P1 (4K)        Processor 1
4423      P2 (4K)        Processor 2
4424      MD             Main Data Memory (Data in from and to Host)
4425      TM             Table Memory
4426      FM             Floating Multiplier
4429      FMT            Formatter
4446      CUSTOM FMT     Custom Formatter
4447      CIO
4448      AP I/F         Arithmetic Processor Interface
4456      MD             Main Data / Memory
4477      BIRP I/F
4481      MD PORT
4482      PIXEL MEM
4496      ??             ??
4497      ??             ??
4498      MEM CTL        Memory Control

Series    Name           Function
4801      ??             ??
4803      VBUS XLTR      VersaBus translator?
4804      UNIV FMT       Universal Formatter
4805      XP32 EXEC      XP32 Processor
4806      XP32 ARITH     XP32 Processor
4808      VBUS SBC       VersaBus controller?