Page 74 Epson Research and Development
Vancouver Design Center
S1D13505 Hardware Functional Specification
X23A-A-001-14 Issue Date: 01/02/02
7.4 Power Sequencing7.4.1 LCD Power Sequencing
Figure 7-22: LCD Panel Power Off / Power On Timing. Drawn with LCDPWR set to active high polarity
Table 7-21: LCD Panel Power Off/ Power On
Note

Where TFPFRAME is the period of FPFRAME and TPCLK is the period of the pixel clock.

Symbol Parameter Min Max Units
t1 SUSPEND# or LCD ENABLE BIT low to LCDPWR off 2TFPFRAME +
8TPCLK ns
t2 SUSPEND# or LCD ENABLE BIT low to FPFRAME inactive 1Frames
t3 FPFRAME inactive to FPLINE, FPSHIFT, FPDATA, DRDY inactive 128 Frames
t4 SUSPEND# to CLKI inactive 130 Frames
t5 SUSPEND# or LCD ENABLE BIT high to FPLINE, FPSHIFT,
FPDATA, DRDY active TFPFRAME +
8TPCLK ns
t6 FPLINE, FPSHIFT, FPDATA, DRDY active to LCDPWR, on and
FPFRAME active 128 Frames
t7 CLKI active to SUSPEND# inactive 0ns
SUSPEND# or
LCDPWR
FPFRAME
FPLINE
FPSHIFT
FPDATA
DRDY
t1
t3
LCD Enable Bit
t4 t7
CLKI
t5 t6
t2