DATUM, INC.

BC640AT TYMDIAL

Category               PC Synchronization Clock
Data Bus Type          16-bit ISA
Memory Type            Unidentified
Maximum Onboard Memory Unidentified

[Image]

                         CONNECTIONS

     Purpose        Location        Purpose        Location

  Line out            CN1        Receive Line        CN3

  Transmit Line       CN2

                          INTERRUPT SELECT

   IRQ      JP1/A    JP1/B     JP1/C     JP1/D    JP1/E     JP1/F

   IRQ3     Closed    Open     Open      Open      Open      Open

   IRQ4     Open     Closed    Open      Open      Open      Open

   IRQ5     Open      Open     Closed    Open      Open      Open

   IRQ6     Open      Open     Open      Closed    Open      Open

   IRQ7     Open      Open     Open      Open     Closed     Open

   IRQ9     Open      Open     Open      Open      Open     Closed

                    INTERRUPT SELECT (CONTINUED)

   IRQ      JP1/G    JP1/H     JP1/I     JP1/J    JP1/K     JP1/L

  IRQ10     Closed    Open     Open      Open      Open      Open

  IRQ11     Open     Closed    Open      Open      Open      Open

  IRQ12     Open      Open     Closed    Open      Open      Open

  IRQ14     Open      Open     Open      Closed    Open      Open

  IRQ15     Open      Open     Open      Open     Closed     Open

   NONE     Open      Open     Open      Open      Open     Closed

  FACTORY CONFIGURED SETTING

    Switch         Setting

     SW1/7            On

     SW1/8            On

                           ADDRESS CONFIGURATION

  Address    SW1/1      SW1/2      SW1/3     SW1/4      SW1/5     SW1/6

   100h        On        Off        On         On        On         On

   110h        On        Off        On         On        On        Off

   120h        On        Off        On         On        Off        On

   130h        On        Off        On         On        Off       Off

   140h        On        Off        On        Off        On         On

   150h        On        Off        On        Off        On        Off

   160h        On        Off        On        Off        Off        On

   170h        On        Off        On        Off        Off       Off

   180h        On        Off        Off        On        On         On

   190h        On        Off        Off        On        On        Off

   1A0h        On        Off        Off        On        Off        On

   1B0h        On        Off        Off        On        Off       Off

   1C0h        On        Off        Off       Off        On         On

   1D0h        On        Off        Off       Off        On        Off

   1E0h        On        Off        Off       Off        Off        On

   1F0h        On        Off        Off       Off        Off       Off

   200h       Off         On        On         On        On         On

   210h       Off         On        On         On        On        Off

   220h       Off         On        On         On        Off        On

   230h       Off         On        On         On        Off       Off

   240h       Off         On        On        Off        On         On

   250h       Off         On        On        Off        On        Off

                           ADDRESS CONFIGURATION

  Address    SW1/1      SW1/2      SW1/3     SW1/4      SW1/5     SW1/6

   260h       Off         On        On        Off        Off        On

   270h       Off         On        On        Off        Off       Off

   280h       Off         On        Off        On        On         On

   290h       Off         On        Off        On        On        Off

   2A0h       Off         On        Off        On        Off        On

   2B0h       Off         On        Off        On        Off       Off

   2C0h       Off         On        Off       Off        On         On

   2D0h       Off         On        Off       Off        On        Off

   2E0h       Off         On        Off       Off        Off        On

   2F0h       Off         On        Off       Off        Off       Off

   300h       Off        Off        On         On        On         On

   310h       Off        Off        On         On        On        Off

   320h       Off        Off        On         On        Off        On

   330h       Off        Off        On         On        Off       Off

   340h       Off        Off        On        Off        On         On

   350h       Off        Off        On        Off        On        Off

   360h       Off        Off        On        Off        Off        On

   370h       Off        Off        On        Off        Off       Off

   380h       Off        Off        Off        On        On         On

   390h       Off        Off        Off        On        On        Off

   3A0h       Off        Off        Off        On        Off        On

   3B0h       Off        Off        Off        On        Off       Off

   3C0h       Off        Off        Off       Off        On         On

   3D0h       Off        Off        Off       Off        On        Off

   3E0h       Off        Off        Off       Off        Off        On

   3F0h       Off        Off        Off       Off        Off       Off