S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 70

• Manufacturer Part Number: S1D13704
• Description: LCD Controller
• Manufacturer: Epson Electronics America, Inc.

Page 64
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REG[14h] bits 1-0
REG[13h] bits 7-0
S1D13704
X26A-A-001-06
REG[13h] Screen 1 Vertical Size Register (LSB)
Address = FFF3h
REG[14h] Screen 1 Vertical Size Register (MSB)
Address = FFF4h
Vertical Size
Screen 1
Bit 7
n/a
Vertical Size
Screen 1
Bit 6
n/a
Screen 1 Vertical Size Bits [9:0]
This register is used to implement the Split Screen feature of the S1D13704. These bits
determine the height (in lines) of Screen 1. On reset this register is set to 0h.
In landscape modes, if this register is programmed with a value, n, where n is less than the
Vertical Panel Size (REG[06h], REG[05h]), then lines 0 to n of the panel contain Screen 1
and lines n+1 to REG[06h], REG[05h] of the panel contain Screen 2. See Figure 8-1:
“Screen-Register Relationship, Split Screen,” on page 65. If Split Screen is not desired,
this register must be programmed greater than, or equal to the Vertical Panel Size,
REG[06h] and REG[05h].
In SwivelView modes this register must be programmed greater than, or equal to the Verti-
cal Panel Size, REG[06h] and REG[05h]. See “SwivelView™” on page 80.
Vertical Size
Screen 1
Bit 5
n/a
Vertical Size
Screen 1
Bit 4
n/a
Vertical Size
Screen 1
Bit 3
n/a
Vertical Size
Screen 1
Bit 2
n/a
Epson Research and Development
Hardware Functional Specification
Vertical Size
Vertical Size
Screen 1
Screen 1
Bit 1
Bit 9
Vancouver Design Center
Issue Date: 02/02/01
Read/Write
Read/Write
Vertical Size
Vertical Size
Screen 1
Screen 1
Bit 0
Bit 8