SED1374 Datasheet, PDF (142/420 Pages) Epson Company – SED1374 Embedded Memory Color LCD Controller

Page 46
Epson Research and Development
Vancouver Design Center
8 Identifying the SED1374
As there are several similar products in the 135X and 137X LCD controller families, which
can for the most part share the same code base. It may be important for a program to identify
between products at run time.
Identification of the SED1374 can be performed any time after the system has been
powered up by reading REG[00h], the Revision Code register. The six most significant bits
form the product identification code and the two least significant bits form the product
revision.
From reset (power on) the steps to identifying the SED1374 are as follows:
1. Read REG[00h]. Mask off the lower two bits, the revision code, to obtain the product
code.
2. The product code for the SED1374 is 018h.
SED1374
X26A-G-002-02
Programming Notes and Examples
Issue Date: 99/04/27