Epson SED1352 Technical Manual page 107

Epson Research and Development
Vancouver Design Center
Note
A
Line Byte Count
B Single Panel
Total Display Line Count
C Dual Panel
Example 2: Initialize the registers for a 4 gray shade 640x480 dual panel LCD with 128k of display
memory. Afterwards write one pixel to the top left corner of the display.
Program SED1352 Registers 00h-0Dh:
AUX
Data
Register (in Binary)
AUX[00h] 0000 0000 •
AUX[01h] 1100 1000
AUX[02h] 0100 1111
AUX[03h] 0000 0110
AUX[04h] 1110 1111
AUX[05h] 0000 0000
Programming Notes and Examples
Issue Date: 98/10/08
 Panel Width in Pixels
= ------------------------------------------------------------------------------------------- -

Memory Interface Width (8 or 16 bits)
  1
320
×
-------- -
= 4 – = 79
 
16
= number of display lines 1
Total Display Line Count
must be zero
• b7 = display on (normal)
• b6 = dual panel (panel specific)
• b5 = XSCL not masked (panel specific)
• b4 = LCDE LCDENB pin = 0 (implementation specific; the
recommended procedure is to turn this bit off during register
initialization and afterwards turn this bit on)
• b3 = 16 grays (application specific)
• b2 = 4 bit LCD data width (panel specific)
• b1 = 16 bit Memory Interface (implementation specific)
• b0 = RAMS ignored (implementation specific)
• bits 7-0 = bits 7-0 of Line Byte Count (panel specific)
• bit 8 of Line Byte Count in bit 0 of AUX[03h] (panel specific)
• bits 7-6 = Power Save Mode 0 (application specific)
• bit 5 = LCD interface signals forced to 0 during Power Save
(implementation specific)
• bit 4 = no LUT bypass (application specific)
• bits 3-1 = not used
• bit 0 = bit 8 of Line Byte Count (panel specific, see AUX[02h])
• bits 7-0 = bits 7-0 of Total Display Line Count (panel specific)
• bits 9-8 of Total Display Line Count in bits 1-0 of AUX[05h]
(panel specific)
• bits 7-2 = WF not required (panel specific)
• bits 1-0 = bits 9-8 of Total Display Line Count (panel specific,
see AUX[04h])
× [
bits per pixel (2 or 4 bits)
= 4Fh
– = 240 1 –
number of display lines
= ------------------------------------------------------- - 1
2
Notes
 1
]
–

= 239 = 0EFh
–
See Also
see Note A at end of
Table for calculation
see Section 5.6, "Power
Saving" on page 44
see Note B and C at end
of Table for calculation
X16-BG-007-04
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SED1352