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Epson Research and Development
Vancouver Design Center
S1D13503
Programming Notes and Examples
X18A-G-002-06
Issue Date: 01/01/30
6 IDENTIFYING THE S1D13503
To identify the LCD controller upon power up / reset, perform the following steps:
1.
Power up LCD controller.
2.
Read AUX[0Eh], bits 5-4. Refer to Table 6-1 below to decode chip ID.
Note
If the registers have already been initialized after power up, the ID bits in AUX[0Eh] cannot be used
since these bits are also used for the RGB index. It is recommended to always store the chip ID immedi-
ately after power up and before any register initialization.
Table 6-1: ID Bit Usage
Chip
Aux[0E]
bit 5
bit 4
Power On
or
RESET
S1D13503
0
0
reserved
0
1
S1D13502
1
0
S1D13502
1
1
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