OMNICOMP GRAPHICS CORPORATION ============================= M&M BASIC Category Video Video Types Supported VGA Video Processor S2C9001 Highest Resolution Supported 720 x 480 Data Bus Type 16-bit ISA Memory Type N/A Maximum Onboard Memory N/A +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-----------------------+----------+--------------+----------| | Video input connector | CN1 | VESA feature | JP4 | | | | connector | | |-----------------------+----------+--------------+----------| | Video output | CN2 | | | | connector | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | I/O REGISTER SPACE CONFIGURATION | |------------------------------------------------------------| | Setting | JP1 | |----------------------------+-------------------------------| |>> | Fixed | Pins 1 & 2 closed | |---+------------------------+-------------------------------| | | Programmed | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | BASE I/O ADDRESS SELECTION | |------------------------------------------------------------| |Address|SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6|SW1/7|SW1/8| |-------+------+------+------+------+------+-----+-----+-----| | 100h | Off | On | On | On | On | On | On | On | |-------+------+------+------+------+------+-----+-----+-----| | 200h | On | Off | On | On | On | On | On | On | |-------+------+------+------+------+------+-----+-----+-----| | 300h | Off | Off | On | On | On | On | On | On | |-------+------+------+------+------+------+-----+-----+-----| | 400h | On | On | Off | On | On | On | On | On | |-------+------+------+------+------+------+-----+-----+-----| | 500h | Off | On | Off | On | On | On | On | On | |-------+------+------+------+------+------+-----+-----+-----| | FB00h | Off | Off | On | Off | Off | Off | Off | Off | |-------+------+------+------+------+------+-----+-----+-----| | FC00h | On | On | Off | Off | Off | Off | Off | Off | |-------+------+------+------+------+------+-----+-----+-----| | FD00h | Off | On | Off | Off | Off | Off | Off | Off | |-------+------+------+------+------+------+-----+-----+-----| | FE00h | On | Off | Off | Off | Off | Off | Off | Off | |-------+------+------+------+------+------+-----+-----+-----| | FF00h | Off | Off | Off | Off | Off | Off | Off | Off | |------------------------------------------------------------| | Note: A total of 255 base address settings are available. | | The switches are a binary representation of the decimal | | memory addresses. SW1/8 is the Most Significant Bit and | | switch SW1/1 is the Least Significant Bit. The switches | | have the following decimal values: SW1/8=32768, | | SW1/7=16384, SW1/6=8192, SW1/5=4096, SW1/4=2048, | | SW1/3=1024, SW1/2=512, SW1/1=256. Turn off the switches | | and add the values of the switches that are off to obtain | | the correct memory address. (Off=1, On=0) | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO INPUT IMPEDANCE SELECTION | |------------------------------------------------------------| | Setting | SW4/2 | SW4/3 | SW4/4 | |------------------------------------+-------+-------+-------| | Red display signal from VGA card | Off | Off | Off | |------------------------------------+-------+-------+-------| | Green display signal from VGA card | Off | Off | Off | |------------------------------------+-------+-------+-------| | Blue display signal from VGA card | Off | Off | Off | |------------------------------------+-------+-------+-------| | Channel 1 composite video or Y of | Off | Off | Off | | S-video | | | | |------------------------------------+-------+-------+-------| | Channel 2 composite video or Y of | Off | Off | Off | | S-video | | | | |------------------------------------+-------+-------+-------| | Channel 3 composite video or Y of | Off | Off | Off | | S-video | | | | |------------------------------------+-------+-------+-------| | Channel 1 C of S-video | Off | Off | On | |------------------------------------+-------+-------+-------| | Channel 2 C of S-video | Off | On | Off | |------------------------------------+-------+-------+-------| | Channel 3 C of S-video | On | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO INPUT IMPEDANCE SELECTION (CON'T) | |------------------------------------------------------------| | Setting | SW4/5 | SW4/6 | SW4/7 | |------------------------------------+-------+-------+-------| | Red display signal from VGA card | Off | Off | Off | |------------------------------------+-------+-------+-------| | Green display signal from VGA card | Off | Off | Off | |------------------------------------+-------+-------+-------| | Blue display signal from VGA card | Off | Off | Off | |------------------------------------+-------+-------+-------| | Channel 1 composite video or Y of | Off | Off | On | | S-video | | | | |------------------------------------+-------+-------+-------| | Channel 2 composite video or Y of | Off | On | Off | | S-video | | | | |------------------------------------+-------+-------+-------| | Channel 3 composite video or Y of | On | Off | Off | | S-video | | | | |------------------------------------+-------+-------+-------| | Channel 1 C of S-video | Off | Off | Off | |------------------------------------+-------+-------+-------| | Channel 2 C of S-video | Off | Off | Off | |------------------------------------+-------+-------+-------| | Channel 3 C of S-video | Off | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO INPUT IMPEDANCE SELECTION (CON'T) | |------------------------------------------------------------| | Setting | SW4/8 | SW4/9 | SW4/10 | |-----------------------------------+-------+-------+--------| | Red display signal from VGA card | Off | Off | On | |-----------------------------------+-------+-------+--------| | Green display signal from VGA | Off | On | Off | | card | | | | |-----------------------------------+-------+-------+--------| | Blue display signal from VGA card | On | Off | Off | |-----------------------------------+-------+-------+--------| | Channel 1 composite video or Y of | Off | Off | Off | | S-video | | | | |-----------------------------------+-------+-------+--------| | Channel 2 composite video or Y of | Off | Off | Off | | S-video | | | | |-----------------------------------+-------+-------+--------| | Channel 3 composite video or Y of | Off | Off | Off | | S-video | | | | |-----------------------------------+-------+-------+--------| | Channel 1 C of S-video | Off | Off | Off | |-----------------------------------+-------+-------+--------| | Channel 2 C of S-video | Off | Off | Off | |-----------------------------------+-------+-------+--------| | Channel 3 C of S-video | Off | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTE | |------------------------------------------------------------| | SW2 is the Video Color Switch. It is used to adjust the | | timing of the color information in the video signal. SW2 | | consists of six switches the default is the SW2/4 switch | | in the On position, & the rest of the switches in the Off | | position. You must use a "trial and error" process to | | adjust SW2. Only one switch can be On at any given time. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTE | |------------------------------------------------------------| | SW3 is the Color Key Skew Switch. It is used to adjust the | | timing of the color key signal. SW3 consists of six | | switches the default is the SW3/4 switch in the On | | position, & the rest of the switches in the Off position. | | You must use a "trial and error" process to adjust SW3. | | Only one switch can be On at any given time. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY CONFIGURED - DO NOT ALTER | |------------------------------------------------------------| | Switch | Position | |-----------------------------+------------------------------| | SW4/1 | On | +------------------------------------------------------------+