Epson S1D13705 technical manual Look-Up Table Registers, LUT Data

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	Vancouver Design Center

4.1 Look-Up Table Registers

REG[15h] Look-Up Table Address Register							Read/Write
LUT Address	LUT Address	LUT Address	LUT Address	LUT Address	LUT Address	LUT Address	LUT Address
Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0

LUT Address

The LUT address register selects which of the 256 LUT entries will be accessed. After three successive reads/writes to the data register this register is automatically incremented to point to the next address.

REG[17h] Look-Up Table Data Register							Read/Write
LUT Data	LUT Data	LUT Data	LUT Data	n/a	n/a	n/a	n/a
Bit 3	Bit 2	Bit 1	Bit 0

LUT Data

This register is where the 4-bit red/green/blue data value is written/read. Immediately after 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 incremented. 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.

S1D13705	Programming Notes and Examples
X27A-G-002-03	Issue Date: 02/01/22