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.