Preliminary
LCD CONTROLLER
S3C2451X RISC MICROPROCESSOR
22-36
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Video Time Control 1 Register
Register Address
R/W
Description
Reset
Value
VIDTCON1 0x4C80000C
R/W
Video
time control 2 register
0x0000_0000
VIDTCON1 Bit
Description
Initial
state
HBPD
[23:16]
Horizontal back porch is the number of VCLK periods between
the edge of HSYNC and the start of active data.
(Period : HBPD +1)
Note. Set 0x10 for i80-System Interface
When the PNRMODE (VIDCON0 [14:13]) is set to serial format
the period becomes 3 times of HBPD value.
(If HBPD is set to ‘0’ in serial mode, the period becomes 3-VLCK)
0000000
HFPD
[15:8]
Horizontal front porch is the number of VCLK periods between the
end of active data and the edge of next HSYNC.
(Period : HFPD +1)
Note. When the PNRMODE(VIDCON0[14:13]) is set to serial
format the period of HFPD becomes 3 times of VCLK
(If HFPD is set to ‘0’ in serial mode, the period becomes 3-VLCK)
0x00
HSPW
[7:0]
Horizontal sync pulse width determines the HSYNC pulse's level
width by counting the number of the VCLK.
(Period : HSPW +1)
Note. When the PNRMODE(VIDCON0[14:13]) is set to serial
format the period of HSPW becomes 3 times of VCLK
(If HSPW is set to ‘0’ in serial mode, the period becomes 3-VLCK)
0x00
VIDEO Time Control 2 Register
Register Address
R/W
Description
Reset
Value
VIDTCON2 0x4C800010
R/W
Video
time control 3 register
0x0000_0000
VIDTCON2 Bit
Description
Initial
state
LINEVAL
[21:11]
These bits determine the vertical size of display
0
HOZVAL
[10:0]
These bits determine the horizontal size of display
0