
DECISION COMPUTER INTERNATIONAL CO., LTD.

IPCVOICE

Card Type              Sound card
Chipset                Unidentified
Maximum Onboard Memory 1MB EPROM
I/O Options            Audio out
Data Bus               IPCCPU expansion bus

[Image]

                                CONNECTIONS

          Function            Label            Function            Label

  IPCCPU expansion bus         P1      Volume adjustment            PT1

  Audio out (see pinout        P2      Speed adjustment             PT2
  below)

                        CONNECTIONS

       Function          Pin         Function          Pin

  Audio line out          1     Speaker out             3

  Audio line out          2     Ground                  4

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label         Position

  Each message is 6553 bytes                   JP3          Pins 1 & 2
                                                             closed

  Each message is 13107 bytes                  JP3          Pins 2 & 3
                                                             closed

     EPROM CONFIGURATION

     Size          EPROM

     32KB        (1) 27C256

     64KB        (1) 27C512

     128KB      (1) 27C1001

     256KB      (1) 27C2001

     512KB      (1) 27C4001

      1MB       (1) 27C8001

                        EPROM JUMPER CONFIGURATION

    Size           JP3             JP4            JP5            JP6

    32KB          Open          Pins 2 & 3     Pins 2 & 3     Pins 2 & 3
                                 closed         closed          closed

    64KB          Open          Pins 2 & 3     Pins 2 & 3     Pins 2 & 3
                                 closed         closed          closed

   128KB         See user       Pins 2 & 3     Pins 2 & 3     Pins 2 & 3
              config. table      closed         closed          closed

   256KB         See user       Pins 1 & 2     Pins 2 & 3     Pins 2 & 3
              config. table      closed         closed          closed

   512KB         See user       Pins 1 & 2     Pins 1 & 2     Pins 2 & 3
              config. table      closed         closed          closed

    1MB          See user       Pins 1 & 2     Pins 1 & 2     Pins 1 & 2
              config. table      closed         closed          closed

            Note: To determine how many messages the IPCVOICE card will
            hold, divide the size of the chip by the size of each message
            (determined by JP3). The amount of messages held by 32KB and
            64KB versions is unidentified.

                   BASE I/O ADDRESS SELECTION

  Setting     JP1/A      JP1/B      JP1/C      JP1/D     JP1/E

    90h      Closed      Open       Open       Open       Open

    A0h       Open      Closed      Open       Open       Open

    B0h       Open       Open      Closed      Open       Open

    C0h       Open       Open       Open      Closed      Open

    E0h       Open       Open       Open       Open      Closed

                CARD NUMBER SELECTION

  Setting    JP2/A      JP2/B      JP2/C      JP2/D

     1       Closed      Open      Open       Open

     2        Open      Closed     Open       Open

     3        Open       Open     Closed      Open

     4        Open       Open      Open      Closed

                       MISCELLANEOUS TECHNICAL NOTES

  This card is designed to be used with Decision Computer International
  Co., Ltd.s IPCCPU board. See this document for more information.

