User's Manual

Table Of Contents
LCD CONTROLLER S3C2450X RISC MICROPROCESSOR
22-36
8.1.6 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
8.1.7 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