SED1374 Datasheet, PDF (70/420 Pages) Epson Company – SED1374 Embedded Memory Color LCD Controller

Page 62
Epson Research and Development
Vancouver Design Center
REG[0Fh] Screen 2 Start Address Register (LSB)
Address = FFEFh
Read/Write
Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start
Address
Address
Address
Address
Address
Address
Address
Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
REG[10h] Screen 2 Start Address Register (MSB)
Address = FFF0h
Read/Write
Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start Screen 2 Start
Address
Address
Address
Address
Address
Address
Address
Address
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
REG[10h] bit 6-0
REG[0Fh] bit 7-0
REG[10h] bit 7
Screen 2 Start Address Bits [14:0]
These bits determine the word address of the start of Screen 2 in landscape modes or the
byte address of the start of Screen 2 in SwivelView modes.
Screen 2 Start Address Bit 15
This bit is for SwivelView mode only and has no effect in Landscape mode.
REG[12h] Memory Address Offset Register
Address = FFF2h
Memory
Address
Offset Bit 7
Memory
Address
Offset Bit 6
Memory
Address
Offset Bit 5
Memory
Address
Offset Bit 4
Memory
Address
Offset Bit 3
Memory
Address
Offset Bit 2
Memory
Address
Offset Bit 1
Read/Write
Memory
Address
Offset Bit 0
bits 7-0
Memory Address Offset Bits [7:0] (Landscape Modes Only)
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 64.
This register has no effect in SwivelView modes. See “REG[1Ch] Line Byte Count Regis-
ter for SwivelView Mode” on page 69.
SED1374
X26A-A-001-02
Hardware Functional Specification
Issue Date: 99/04/29