15 LCD CONTROLLER
126
EPSON
S1C38000 TECHNICAL MANUAL
bits 23–18 LUT Red Write Data Bits [5:0]
This register contains the data to be written to the red component of the Look-Up Table.
bits 15–10 LUT Green Write Data Bits [5:0]
This register contains the data to be written to the green component of the Look-Up
Table.
bits 7–2
LUT Blue Write Data Bits [5:0]
This register contains the data to be written to the blue component of the Look-Up
Table.
bits 31–24 LUT Read Address Bits [7:0] (Write Only)
This register forms a pointer into the Look-Up Table (LUT) which is used to read LUT
data and store it. A write to the LUT Read Address pointer also updates the LUT Write
Address pointer in LCD[18h]. The data is read from the LUT only when a write to this
register is completed. These bits are write-only and return 00h if read.
Note: The S1C38000 has three 256-position, 6-bit wide LUTs, one for each of red, green, and
blue (see Section 15.9, “Look-Up Table Architecture” on page 141).
bits 23–18 LUT Red Read Data Bits [5:0] (Read Only)
This register contains the data from the red component of the Look-Up Table. The LUT
entry read is controlled by the LUT Read Address (bits [31:24]). These are read-only
bits.
Note: This register is updated only when the LUT Read Address (bits [31:24]) is written to.
bits 15–10 LUT Green Read Data Bits [5:0] (Read Only)
This register contains the data from the green component of the Look-Up Table. The
LUT entry read is controlled by the LUT Read Address (bits [31:24]). These are read-
only bits.
Note: This register is updated only when the LUT Read Address (bits [31:24]) is written to.
bits 7–2
LUT Blue Read Data Bits [5:0] (Read Only)
This register contains the data from the blue component of the Look-Up Table. The LUT
entry read is controlled by the LUT Read Address (bits [31:24]). These are read-only
bits.
Note: This register is updated only when the LUT Read Address (bits [31:24]) is written to.
Look-Up Table Read Register
LCD[1Ch]
Default = 0000 0000h
Read/Write
LUT Read Address (write only)
LUT Red Read Data (read only)
n/a
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
LUT Green Read Data (read only)
n/a
LUT Blue Read Data (read only)
n/a
15
14
13
12
11
10
9876543210