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# 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
IMG IMG 1
+------------------------------------------------------------+
| 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 & | Pins 2 & |
| | | closed | 3 closed | 3 closed |
|---------+------------+-------------+-----------+-----------|
| 64KB | Open | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | | closed | 3 closed | 3 closed |
|---------+------------+-------------+-----------+-----------|
| 128KB | See user | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | config. | closed | 3 closed | 3 closed |
| | table | | | |
|---------+------------+-------------+-----------+-----------|
| 256KB | See user | Pins 1 & 2 | Pins 2 & | Pins 2 & |
| | config. | closed | 3 closed | 3 closed |
| | table | | | |
|---------+------------+-------------+-----------+-----------|
| 512KB | See user | Pins 1 & 2 | Pins 1 & | Pins 2 & |
| | config. | closed | 2 closed | 3 closed |
| | table | | | |
|---------+------------+-------------+-----------+-----------|
| 1MB | See user | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | config. | closed | 2 closed | 2 closed |
| | table | | | |
|------------------------------------------------------------|
| 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. |
+------------------------------------------------------------+