26 LCD CONTROLLER (LCDC)
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
26-11
FPSHIFT mask for monochrome LCD panel
When color passive panel is selected (COLOR/LCDC_DISPMOD register = 1), the FPSHIFT clock is output
during the horizontal display period (HDP) and it stops during the horizontal non-display period (HNDP) as
shown in Figures 26.5.2.2 to 26.5.2.6.
When monochrome passive panel is selected (COLOR = 0), the FPSHIFT clock does not stop even in the hori-
zontal non-display period by the default setting. To stop the FPSHIFT clock during the horizontal non-display
period, set FPSHIFT_MSK/LCDC_DISPMOD register to 1.
Note: When using an STN panel, the registers for setting the HR-TFT timing parameters must be set to
0x0.
HR-TFT Panel Timing Parameters
26.5.3
The HR-TFT panel timing parameters shown in Figures below can be set using the LCDC control registers.
FPLINE (LP)
HPW
HPS
HDPS
HT
FPFRAME (SPS)
VT
VDPS
VDP
HDP
VPS
VPW
Non display period
Display period
5.3.1 HR-TFT Panel Timing Parameters
Figure 26.
D1
D2
D319
D320
FPFRAME (SPS)
FPLINE (LP)
FPLINE (LP)
FPSHIFT (DCLK)
FPDAT[23:0]
FPDRDY (DEN)
TFT_CTL3 (SPL)
TFT_CTL1 (CLS)
TFT_CTL0 (PS)
TFT_CTL2 (REV)
TFT_CTL1 pulse start offset
TFT_CTL2 delay
TFT_CTL1 pulse stop offset
TFT_CTL0 pulse start offset
TFT_CTL0 pulse stop offset
HT
HDPS
HDP
HPS
FPFRAME pulse
start offset
VPS
VPW
FPFRAME pulse stop offset
HPW
Horizontal timing