
NATURAL MICROSYSTEMS CORPORATION

AG-8, AG-8/F

Card Type              Telephony
Chip Set               TI TMS320C51
I/O options            MVIP bus, serial port
Processor              80386SX
Processor Speed        16/25MHz
Maximum Onboard Memory 512KB DRAM/256KB SRAM
Data Bus               16-bit ISA

[Image]

                                CONNECTIONS

           Function             Label           Function           Label

  RS-232 port (see pinout        E43     Lines 3 & 4                CN2
  below)

  MVIP bus                       JP5     Lines 5 & 6                CN3

  DSP daughterboard              JP7     Lines 7 & 8                CN4

  Mini-ISA daughterboard         JP8     Power, ground, and         CN5
                                         signaling

  Lines 1 & 2                    CN1

       E43 PINOUT

    Pin      Function

     1        Ground

     2       Transmit

     3        Receive

     4        Ground

         SRAM BANK 0

     Size          Bank 0

     32KB       (4) 16K x 4

     128KB      (4) 64K x 4

                     SRAM BANK 0 CONFIGURATION

      Size             R66              R67              R68

      32KB          Installed        Installed      Not installed

      128KB       Not installed    Not installed      Installed

         SRAM BANK 1

     Size          Bank 1

     32KB       (4) 16K x 4

     128KB      (4) 64K x 4

                     SRAM BANK 1 CONFIGURATION

      Size             R63              R64              R65

      32KB          Installed        Installed      Not installed

      128KB       Not installed    Not installed      Installed

      BASE I/O ADDRESS (FIRST DIGIT)

  Setting     S1/1       S1/2      S1/3

  0 xxx h      On         On        On

  2 xxx h     Off         On        On

  4 xxx h      On        Off        On

  6 xxx h     Off        Off        On

  8 xxx h      On         On        Off

  A xxx h     Off         On        Off

  C xxx h      On        Off        Off

  E xxx h     Off        Off        Off

   BASE I/O ADDRESS (LAST THREE DIGITS)

  Setting     S1/4       S1/5      S1/6

  x 100h       On        Off        Off

  x 180h      Off         On        Off

  x 1A0h      Off        Off        On

  x 1C0h      Off         On        On

  x 280h       On         On        Off

  x 2A0h       On        Off        On

  x 2C0h       On         On        On

  x 340h      Off        Off        Off

[Image]

                             DIAGNOSTIC LED(S)

   LED      Color    Status                    Condition

    D1       Red       On        Task processor 1 request in progress

    D1       Red      Off      Task processor 1 request not in progress

    D1      Green      On         Task processor 1 grant in progress

    D1      Green     Off       Task processor 1 grant not in progress

                         DIAGNOSTIC LED(S) (CONT)

   LED      Color    Status                    Condition

    D2       Red       On        Task processor 2 request in progress

    D2       Red      Off      Task processor 2 request not in progress

    D2      Green      On         Task processor 2 grant in progress

    D2      Green     Off       Task processor 2 grant not in progress

    D3       Red       On         MVIP processor request in progress

    D3       Red      Off       MVIP processor request not in progress

    D3      Green      On          MVIP processor grant in progress

    D3      Green     Off        MVIP processor grant not in progress

    D4       Red       On                 Processor is reset

    D4       Red      Off               Processor is not reset

    D4      Green      On                 SRAM is "not busy"

    D4      Green     Off                   SRAM is "busy"

    D5       Red       On           Processor is transmitting data

    D5       Red      Off             Processor is receiving data

    D5      Green      On           Host is reading/writing to SRAM

    D5      Green     Off        Processor is reading/writing to SRAM

    D6       Red       On                 DSP chips are reset

    D6       Red      Off               DSP chips are not reset

    D8      Green      On           Diagnostics are being performed

    D8      Green     Off         Diagnostics are not being performed

    D9      Green      On             External power supply is on

    D9      Green     Off            External power supply is off

