ACER, INC. ========== MFB-A Card Type Multi I/O card Chipset/Controller Unidentified I/O Options Memory, game port, parallel port, serial port (2). Maximum DRAM 3MB +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------------+----------+----------------+----------| | Game port | J2 | Parallel port | J5 | |---------------------+----------+----------------+----------| | Serial port 2 - | J3 | MME-A | N/A | | internal | | connector | | |---------------------+----------+----------------+----------| | Serial port 1 - | J4 | | | | external | | | | |------------------------------------------------------------| | Note: The MME-A connector is not identified on | | manufacturer's documentation | +------------------------------------------------------------+ +------------------------------------------------------------+ | GAME PORT CONFIGURATION | |------------------------------------------------------------| | Setting | SW3/6 | |----------------------------------+-------------------------| |>> | Enabled | On | |----+-----------------------------+-------------------------| | | Disabled | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT CONFIGURATION | |------------------------------------------------------------| | LPT/Address/IRQ | SW3/4 | SW3/5 | JP2 | |----------------------+--------+--------+-------------------| |>> | LPT1/378h/IRQ7 | On | Off | Pins 1 & 2 closed | |---+------------------+--------+--------+-------------------| | | LPT1/378h/IRQ5 | On | Off | Pins 2 & 3 closed | |---+------------------+--------+--------+-------------------| | | LPT2/278h/IRQ7 | Off | On | Pins 1 & 2 closed | |---+------------------+--------+--------+-------------------| | | LPT2/278h/IRQ5 | Off | On | Pins 2 & 3 closed | |---+------------------+--------+--------+-------------------| | | Disabled | Off | Off | N/A | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 & 2 CONFIGURATION | |------------------------------------------------------------| | Port 1 | Port 2 | SW3/1 | SW3/2 | SW3/3 | |-----------------+-----------+----------+---------+---------| |>> | COM1/3F8h | COM2/2F8h | On | Off | On | |---+-------------+-----------+----------+---------+---------| | | COM2/2F8h | Disabled | Off | On | Off | |---+-------------+-----------+----------+---------+---------| | | Disabled | Disabled | Off | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 & 2 INTERRUPT SELECT | |------------------------------------------------------------| | Port 1 | Port 2 | JP5 | JP6 | |----------------+------------+-------------------+----------| |>> | IRQ4 | IRQ3 | Pins 2 & 3 closed | Closed | |---+------------+------------+-------------------+----------| | | IRQ3 | Disabled | Pins 1 & 2 closed | Open | |---+------------+------------+-------------------+----------| | | Disabled | Disabled | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 1 TEST | |------------------------------------------------------------| | Port 1 | JP3 | JP4 | JP10 | |---------------------+------------+------------+------------| |>> | DCD signal high | Pins 2 & 3 | N/A | N/A | | | | closed | | | |---+-----------------+------------+------------+------------| | | DCD signal | Pins 1 & 2 | N/A | N/A | | | ground | closed | | | |---+-----------------+------------+------------+------------| |>> | DSR signal high | N/A | Pins 2 & 3 | N/A | | | | | closed | | |---+-----------------+------------+------------+------------| | | DSR signal | N/A | Pins 1 & 2 | N/A | | | ground | | closed | | |---+-----------------+------------+------------+------------| |>> | CTS signal high | N/A | N/A | Pins 1 & 2 | | | | | | closed | |---+-----------------+------------+------------+------------| | | CTS signal | N/A | N/A | Pins 2 & 3 | | | ground | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT 2 TEST | |------------------------------------------------------------| | Port 2 | JP7 | JP8 | JP9 | |---------------------+------------+------------+------------| |>> | DCD signal high | Pins 1 & 2 | N/A | N/A | | | | closed | | | |---+-----------------+------------+------------+------------| | | DCD signal | Pins 2 & 3 | N/A | N/A | | | ground | closed | | | |---+-----------------+------------+------------+------------| |>> | DSR signal high | N/A | Pins 1 & 2 | N/A | | | | | closed | | |---+-----------------+------------+------------+------------| | | DSR signal | N/A | Pins 2 & 3 | N/A | | | ground | | closed | | |---+-----------------+------------+------------+------------| |>> | CTS signal high | N/A | N/A | Pins 1 & 2 | | | | | | closed | |---+-----------------+------------+------------+------------| | | CTS signal | N/A | N/A | Pins 2 & 3 | | | ground | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARITY CHECK | |------------------------------------------------------------| | Setting | JP1 | |---------------------------------+--------------------------| |>> | Enabled | Closed | |---+-----------------------------+--------------------------| | | Disabled | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | STARTING MEMORY ADDRESS | |------------------------------------------------------------| | Memory/Address | SW1/1 | SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 | |----------------+-------+-------+------+------+------+------| | 256KB/040000h | On | On | On | On | On | Off | |----------------+-------+-------+------+------+------+------| | 512KB/080000h | Off | On | On | On | On | On | |----------------+-------+-------+------+------+------+------| | 1MB/100000h | On | Off | On | On | On | On | |----------------+-------+-------+------+------+------+------| | 1.5MB/180000h | Off | Off | On | On | On | On | |----------------+-------+-------+------+------+------+------| | 2MB/200000h | On | On | Off | On | On | On | |----------------+-------+-------+------+------+------+------| | 2.5MB/280000h | Off | On | Off | On | On | On | |----------------+-------+-------+------+------+------+------| | 3MB/300000h | On | Off | Off | On | On | On | |----------------+-------+-------+------+------+------+------| | 3.5MB/380000h | Off | Off | Off | On | On | On | |----------------+-------+-------+------+------+------+------| | 4MB/400000h | On | On | On | Off | On | On | |----------------+-------+-------+------+------+------+------| | 4.5MB/480000h | Off | On | On | Off | On | On | |----------------+-------+-------+------+------+------+------| | 5MB/500000h | On | Off | On | Off | On | On | |----------------+-------+-------+------+------+------+------| | 5.5MB/580000h | Off | Off | On | Off | On | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | STARTING MEMORY ADDRESS | |------------------------------------------------------------| | Memory/Address | SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 | |-----------------+-------+------+------+------+------+------| | 6MB/600000h | On | On | Off | Off | On | On | |-----------------+-------+------+------+------+------+------| | 6.5MB/680000h | Off | On | Off | Off | On | On | |-----------------+-------+------+------+------+------+------| | 7MB/700000h | On | Off | Off | Off | On | On | |-----------------+-------+------+------+------+------+------| | 7.5MB/780000h | Off | Off | Off | Off | On | On | |-----------------+-------+------+------+------+------+------| | 8MB/800000h | On | On | On | On | Off | On | |-----------------+-------+------+------+------+------+------| | 8.5MB/880000h | Off | On | On | On | Off | On | |-----------------+-------+------+------+------+------+------| | 9MB/900000h | On | Off | On | On | Off | On | |-----------------+-------+------+------+------+------+------| | 9.5MB/980000h | Off | Off | On | On | Off | On | |-----------------+-------+------+------+------+------+------| | 10MB/A00000h | On | On | Off | On | Off | On | |-----------------+-------+------+------+------+------+------| | 10.5MB/A80000h | Off | On | Off | On | Off | On | |-----------------+-------+------+------+------+------+------| | 11MB/B00000h | On | Off | Off | On | Off | On | |-----------------+-------+------+------+------+------+------| | 11.5MB/B80000h | Off | Off | Off | On | Off | On | |-----------------+-------+------+------+------+------+------| | 12MB/C00000h | On | On | On | Off | Off | On | |-----------------+-------+------+------+------+------+------| | 12.5MB/C80000h | Off | On | On | Off | Off | On | |-----------------+-------+------+------+------+------+------| | 13MB/D00000h | On | Off | On | Off | Off | On | |-----------------+-------+------+------+------+------+------| |13.5.5MB/D80000h | Off | Off | On | Off | Off | On | |-----------------+-------+------+------+------+------+------| | 14MB/E00000h | On | On | Off | Off | Off | On | |-----------------+-------+------+------+------+------+------| | 14.5MB/E80000h | Off | On | Off | Off | Off | On | |-----------------+-------+------+------+------+------+------| | 15MB/F00000h | On | Off | Off | Off | Off | On | |-----------------+-------+------+------+------+------+------| | 15.5MB/F80000h | Off | Off | Off | Off | Off | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | MEMORY CONFIGURATION | |------------------------------------------------------------| |Bank 0|Bank |Bank |Bank |Bank |Bank |SW2/1|SW2/2|SW2/3|SW2/4| | | 1 | 2 | 3 | 4 | 5 | | | | | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB | N/A | N/A | N/A | N/A | N/A | On | On | On | Off | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |512KB | N/A | N/A | N/A | N/A | N/A | Off | On | On | On | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB |512KB| N/A | N/A | N/A | N/A | Off | On | On | Off | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |512KB |512KB| N/A | N/A | N/A | N/A | On | Off | On | On | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB |512KB|512KB| N/A | N/A | N/A | On | Off | On | Off | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |512KB |512KB|512KB| N/A | N/A | N/A | Off | Off | On | On | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB |512KB|512KB|512KB| N/A | N/A | Off | Off | On | Off | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB |512KB|512KB|512KB| N/A | N/A | On | On | Off | On | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB |512KB|512KB|512KB|512KB| N/A | On | On | Off | Off | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |512KB |512KB|512KB|512KB|512KB| N/A | Off | On | Off | On | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |128KB |512KB|512KB|512KB|512KB|512KB| Off | On | Off | Off | |------+-----+-----+-----+-----+-----+-----+-----+-----+-----| |512KB |512KB|512KB|512KB|512KB|512KB| On | Off | Off | On | |------------------------------------------------------------| |Notes:(1) Banks 3, 4 & 5 are located on supplemental card | |MME-A. | |------------------------------------------------------------| |(2) 4164-type chips are only used in Bank 0 and fill system | |base RAM from 512KB to 640KB. | |------------------------------------------------------------| |(3) 41256/120ns-chips are used in all banks. | +------------------------------------------------------------+