Epson S1D13705 4.1 Look-Up Table Registers

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S1D13705 Programming Notes and Examples
X27A-G-002-03 Issue Date: 02/01/22
4.1 Look-Up Table Registers
LUT Address
The LUT address register selects which of the 256 LUT entries will be acc essed. After three
successive reads/writes to the data register this register is automatically incremented to
point to the next address.
LUT Data
This register is where the 4-bit red/green/blue data value is wr itten/r ead. Immed iately aft er
setting the LUT index with register [15h] this register accesses the red element of the Look-
Up Table. With each successive write/read the internal bank select is inc remented. Thus the
second access is from the green element and the third is from the blue element.
After the third access the LUT Address is incremented by one, then next access to this
register will be the red element of the next Look-Up Table index.
REG[15h] Look-Up Table Address Register Read/Write
LUT Address
Bit 7 LUT Address Bit 6 LUT Address Bit 5 LUT Address Bit 4 LUT Address Bit 3 LUT Address Bit 2 LUT Address Bit 1 LUT Address Bit 0
REG[17h] Look-Up Table Data Register Read/Wr ite
LUT Data
Bit 3 LUT Data Bit 2 LUT Data Bit 1 LUT Data Bit 0 n/a n/a n/a n/a