S1D13705 Epson Electronics America, Inc., S1D13705 Datasheet - Page 60

• Manufacturer Part Number: S1D13705
• Description: S1d13705 Embedded Memory Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 54
8 Registers
8.1 Register Mapping
8.2 Register Descriptions
bits 7-2
bits 1-0
bit 7
bit 6
bit 5
S1D13705
X27A-A-001-09
REG[00h] Revision Code Register
Address = 1FFE0h
REG[01h] Mode Register 0
Address = 1FFE1h
Product Code
TFT/STN
Bit 5
Product Code
Dual/Single
Bit 4
The S1D13705 registers are located in the upper 32 bytes of the 128K byte S1D13705
address range. The registers are accessible when CS# = 0 and AB[16:0] are in the range
1FFE0h through 1FFFFh.
Unless specified otherwise, all register bits are reset to 0 during power up.
All bits marked n/a should be programmed 0.
Product Code
This is a read-only register that indicates the product code of the chip. The product code is
001001.
Revision Code
This is a read-only register that indicates the revision code of the chip. The revision code is
00.
TFT/STN
When this bit = 0, STN (passive) panel mode is selected. When this bit = 1, TFT/D-TFD
panel mode is selected. If TFT/D-TFD panel mode is selected, Dual/Single (REG[01h] bit
6) and Color/Mono (REG[01h] bit5) are ignored. See Table 8-1: “Panel Data Format” for a
comprehensive description of panel selection.
Dual/Single
When this bit = 0, Single LCD panel drive is selected. When this bit = 1, Dual LCD panel
drive is selected. See Table 8-1: “Panel Data Format” for a comprehensive description of
panel selection.
Color/Mono
When this bit = 0, Monochrome LCD panel drive is selected. When this bit = 1, Color
LCD panel drive is selected. See Table 8-1: “Panel Data Format” for a comprehensive
description of panel selection.
Product Code
Color/Mono
Bit 3
Product Code
Polarity
FPLine
Bit 2
Product Code
FPFrame
Polarity
Bit 1
Product Code
FPSHIFT
Mask
Bit 0
Epson Research and Development
Hardware Functional Specification
Data Width
Code Bit 1
Revision
Bit 1
Vancouver Design Center
Issue Date: 01/05/22
Read/Write.
Read Only.
Data Width
Code Bit 0
Revision
Bit 0