S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 69

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

Epson Research and Development
Vancouver Design Center
REG[10h] bit 6-0
REG[0Fh] bit 7-0
REG[10h] bit 7
bits 7-0
Hardware Functional Specification
Issue Date: 02/02/01
REG[0Fh] Screen 2 Start Address Register (LSB)
Address = FFEFh
Screen 2 Start
REG[10h] Screen 2 Start Address Register (MSB)
Address = FFF0h
Screen 2 Start
REG[12h] Memory Address Offset Register
Address = FFF2h
Offset Bit 7
Address
Address
Address
Memory
Bit 15
Bit 7
Screen 2 Start
Screen 2 Start
Offset Bit 6
Address
Address
Memory
Address
Bit 14
Bit 6
byte address of the start of Screen 2 in SwivelView modes.
This bit is for SwivelView mode only and has no effect in Landscape mode.
Memory Address Offset
This register is used to create a virtual image by setting a word offset between the last
address of one line and the first address of the following line. If this register is not equal to
zero, then a virtual image is formed. The displayed image is a window into the larger vir-
tual image. See Figure 8-1: “Screen-Register Relationship, Split Screen,” on page 65.
This register has no effect in SwivelView modes. See “REG[1Ch] Line Byte Count Regis-
ter for SwivelView Mode” on page 70.
Screen 2 Start Address Bits [14:0]
These bits determine the word address of the start of Screen 2 in landscape modes or the
Screen 2 Start Address Bit 15
Screen 2 Start
Screen 2 Start
Offset Bit 5
Address
Address
Memory
Address
Bit 13
Bit 5
Screen 2 Start
Screen 2 Start
Offset Bit 4
Address
Address
Memory
Address
Bits [7:0] (Landscape Modes Only)
Bit 12
Bit 4
Screen 2 Start
Screen 2 Start
Offset Bit 3
Address
Address
Address
Memory
Bit 11
Bit 3
Screen 2 Start
Screen 2 Start
Offset Bit 2
Address
Address
Address
Memory
Bit 10
Bit 2
Screen 2 Start
Screen 2 Start
Offset Bit 1
Address
Address
Memory
Address
Bit 1
Bit 9
Screen 2 Start
Screen 2 Start
Read/Write
Read/Write
Read/Write
X26A-A-001-06
Offset Bit 0
Address
Address
Memory
Address
Bit 0
Bit 8
S1D13704
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