Epson S5U13A04B00C User Manual page 16

LCD Interface Pin Mapping
(REG[14h] bit 0). This GPO can be used to control the HR-TFT MOD signal if
required. For further information, see the S1D13A04 Hardware Functional
Specification, document number X37A-A-001-xx.
16 Seiko Epson Corporation
S5U13A04B00C Rev 1.0 Evaluation Board
Rev. 3.1