S1D13503 Epson Electronics America, Inc., S1D13503 Datasheet - Page 158

• Manufacturer Part Number: S1D13503
• Description: S1d13503 Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 62
//--------------------------------------
//
// Total Display Line Count Register
// Screen 1 Display Line Count Register
//
// To show a full image on Screen 1, copy the Total Display Line Count
// into the Screen 1 Display Line Count.
//
//
// Old programs had previously assumed that all panels smaller
// than 400 lines use a 4 bit interface. However, newer panels
// which are less than 400 lines may use an 8 bit interface.
// Consequently this program must be told which interface to use.
//
// Set the Mask XSCL bit to MASKED (1) when using a 4 bit interface.
//
if (Interface == 4)
val = PanelY;
//
// A dual panel LCD will, of course, have two panels.
// show either the top or bottom half of the image, which is half of the
// vertical resolution.
//
if (PanelType == TYPE_DUAL)
S1D13503
X18A-G-002-06
case 2:
case 4:
case 16:
case 256:
}
{
val = ReadRegister(1);
val &= 0xfb;
val |= 0x20;
WriteRegister(1, val);
}
val /= 2;
BytesPerScanLine = (PanelX / 8);
break;
BytesPerScanLine = (PanelX / 4);
break;
BytesPerScanLine = (PanelX / 2);
break;
BytesPerScanLine = PanelX;
break;
// Set LCD Data Width to 4 bit data transfer
// Set Mask XSCL to MASKED
// Write to Mode Register; LCD Data Width = 4 bits
Each panel will
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Issue Date: 01/01/30