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Epson Research and Development
Vancouver Design Center
S1D13704
Hardware Functional Specification
X26A-A-001-04
Issue Date: 01/02/08
8 Registers
8.1 Register Mapping
The S1D13704 registers are located in the upper 32 bytes of the 64K byte S1D13704
address range. The registers are accessible when CS# = 0 and AB[15:0] are in the range
FFE0h through FFFFh.
8.2 Register Descriptions
Unless specified otherwise, all register bits are reset to 0 during power up.
bits 7-2
Product Code
This is a read-only register that indicates the product code of the chip. The product code is
000110.
bits 1-0
Revision Code
This is a read-only register that indicates the revision code of the chip. The revision code is
00.
bit 7
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”
below.
bit 6
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” below.
bit 5
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” below.
REG[00h] Revision Code Register
Address = FFE0h
Read Only
Product Code
Bit 5
Product Code
Bit 4
Product Code
Bit 3
Product Code
Bit 2
Product Code
Bit 1
Product Code
Bit 0
Revision
Code Bit 1
Revision
Code Bit 0
REG[01h] Mode Register 0
Address = FFE1h
Read/Write.
TFT/STN
Dual/Single
Color/Mono
FPLine
Polarity
FPFrame
Polarity
Mask
FPSHIFT
Data Width
Bit 1
Data Width
Bit 0
*