User`s manual

8: REGISTERS
1-66 EPSON S1D13504 SERIES HARDWARE FUNCTIONAL
SPECIFICATION (X19A-A-002-17)
8.2.3 Panel/Monitor Configuration Registers
bits 5–4 Panel Data Width Bits [1:0]
These bits select passive LCD/TFT panel data width size.
bit 3 Panel Data Format Select
When this bit = 1, 8-bit single color passive LCD panel data format 2 is selected. This bit
must be set to 0 for all other LCD panel formats.
bit 2 Color/Mono Panel Select
When this bit = 1, color passive LCD panel is selected. When this bit = 0, monochrome
passive LCD panel is selected.
bit 1 Dual/Single Panel Select
When this bit = 1, dual passive LCD panel is selected. When this bit = 0, single passive
LCD panel is selected.
Setting this bit for single panel mode should be done only when the Half Frame Buffer is
idle. The Half Frame Buffer is idle during vertical non-display periods or while in sus-
pend mode. For programming information, see “S1D13504 Programming Notes and
Examples”, document number S19A-G-002-xx.
bit 0 TFT/Passive LCD Panel Select
When this bit = 1, TFT panel is selected. When this bit = 0, passive LCD panel is selected.
bits 5–0 MOD Rate Bits [5:0]
For a non-zero value these bits specify the number of FPLINE between toggles of the
MOD output signal. When these bits are all 0’s the MOD output signal toggles every
FPFRAME. These bits are for passive LCD panels only.
bits 6–0 Horizontal Display Width Bits [6:0]
These bits specify the LCD panel and/or the CRT horizontal display width as follows.
Contents of this Register = (Horizontal Display Width ÷ 8) - 1
For passive LCD panels the Horizontal Display Width must be divisible by 16, and for
TFT LCD panels/CRTs the Horizontal Display Width must be divisible by 8. The maxi-
mum horizontal display width is 1024 pixels.
Note: This register must be programmed such that REG[04h] ≥ 3 (32 pixels)
Panel Type Register
REG[02h] RW
n/a n/a
Panel Data
Width Bit 1
Panel Data
Width Bit 0
Panel Data
Format Select
Color/Mono
Panel Select
Dual/Single
Panel Select
TFT/Passive
LCD Panel
Select
Table 8-3 Panel Data Width Selection
Panel Data Width Bits [1:0] Passive LCD Panel Data Width Size TFT Panel Data Width Size
00 4-bit 9-bit
01 8-bit 12-bit
10 16-bit 16-bit
11 Reserved Reserved
MOD Rate Register
REG[03h] RW
n/a n/a
MOD Rate Bit
5
MOD Rate Bit
4
MOD Rate Bit
3
MOD Rate Bit
2
MOD Rate Bit
1
MOD Rate Bit
0
Horizontal Display Width Register
REG[04h] RW
n/a
Horizontal
Display Width
Bit 6
Horizontal
Display Width
Bit 5
Horizontal
Display Width
Bit 4
Horizontal
Display Width
Bit 3
Horizontal
Display Width
Bit 2
Horizontal
Display Width
Bit 1
Horizontal
Display Width
Bit 0