sed1355 ETC-unknow, sed1355 Datasheet - Page 244

• Manufacturer Part Number: sed1355
• Description: Sed1355 Embedded Ramdac Lcd/crt Controller
• Manufacturer: ETC-unknow

Page 88
SED1355
X23A-G-003-05
** Set the contents of the cursor memory such that the cursor
** is transparent. To do so, write a 10101010b pattern in each byte.
** The cursor is 2 bpp so a 64x64 cursor requires
** 64/4 * 64 = 1024 bytes of memory.
*/
for (lpCnt = 0; lpCnt < 1024; lpCnt++)
/*
** Set the first user definable cursor color to black and
** the second user definable cursor color to white.
*/
*(pRegs + 0x2C) = 0;
*(pRegs + 0x2D) = 0;
*(pRegs + 0x2E) = 0xFF;
*(pRegs + 0x2F) = 0xFF;
/*
** Draw a hollow rectangle around the cursor.
*/
pTmp = pCursor;
for (lpCnt = 0; lpCnt < 16; lpCnt++)
{
}
for (lpCnt = 0; lpCnt < 14; lpCnt++)
{
}
for (lpCnt = 0; lpCnt < 16; lpCnt++)
{
}
/*
** Move the cursor to 100, 100.
*/
/*
** First we wait for the next vertical non-display
** period before updating the position registers.
*/
while (*(pRegs + 0x0A) & 0x80);
while (!(*(pRegs + 0x0A) & 0x80));
/*
{
*pTmp = 0xAA;
pTmp++;
}
*pTmp = 0x55;
pTmp++;
*pTmp = 0x6A;
pTmp += 15;
*pTmp = 0xA9;
pTmp++;
*pTmp = 0x55;
pTmp++;
/* wait while in VNDP */
/* wait while in VDP */
Epson Research and Development
Programming Notes and Examples
Vancouver Design Center
Issue Date: 99/04/27