SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 275

• Manufacturer Part Number: SPC8106
• Description: LCD/CRT VGA CONTROLLER
• Manufacturer: S-MOS Systems

5.0
The purpose of the code examples below are to demonstrate the methods to identifying the
SPC8106 graphics controller. We have two recommended methods:
Sample code (in C):
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
SPC8106
//always enable Auxiliary register first
outpw (0x3de, 0x1ade);
inp (0x3df);
//try SOLLEX call to get chip product code & revision
regs.x.ax = 0x7fff;
regs.h.bl = 1;
int86(0x10, &regs, &regs);
if ( regs.x.ax == 0x7f)
1. Identifying the SPC8106 through a Seiko Epson BIOS specific BIOS call ;
411-1.0
{
}
if ( regs.h.bh == 0xec )
else
IDENTIFYING THE SPC8106
printf ( "SPC8106 detected.\n" );
printf ( "SPC8106 not found.\n" );
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
//SOLLEX call is successful
X12-AN-003-02
Programming Notes and Examples
SP3-49