LCD CONTROLLER
S3C2416X RISC MICROPROCESSOR
21-26
4 VTIME CONTROLLER OPERATION
4.1 RGB INTERFACE
The VTIME generates the control signals such as, RGB_VSYNC, RGB_HSYNC, RGB_VDEN and RGB_VCLK
signal for RGB interface. These control signals are highly related with the configuration on the VIDTCON0/1/2
registers in the VSFR register. Base on these programmable configurations of the display control registers in
VSFR, the VTIME module can generate the programmable control signals suitable for the support of many
different types of display device.
The RGB_VSYNC signal is asserted to cause the LCD's line pointer to start over at the top of the display. The
RGB_VSYNC and RGB_HSYNC pulse generation is controlled by the configuration of both the HOZVAL field and
the LINEVAL registers. The HOZVAL and LINEVAL can be determined by the size of the LCD panel according to
the following equations:
HOZVAL = (Horizontal display size) -1
LINEVAL = (Vertical display size) –1
The rate of RGB_VCLK signal can be controlled by the CLKVAL field in the VIDCON0 register. The table below
defines the relationship of RGB_VCLK and CLKVAL. The minimum value of CLKVAL is 1.
RGB_VCLK (Hz) =HCLK/ [1]
Table 21-5. Relation between VCLK and CLKVAL (Freq. of Video Clock Source=60MHz)
CLKVAL 60MHz/X
VCLK
1
60 MHz/2
30.0 MHz
2
60 MHz/3
15.0 MHz
: :
:
63
60 MHz/64
938 kHz
The RGB_HSYNC and RGB_VSYNC signal is configured by RGB_VSYNC, VBPD, VFPD, HSYNC, HBPD,
HFPD, HOZVAL and LINEVAL. Refer the Figure 21-10.
The frame rate is RGB_VSYNC signal frequency. The frame rate is related with the field of RGB_VSYNC, VBPD,
VFPD, LINEVAL, HSYNC, HBPD, HFPD, HOZVAL, CLKVAL registers. Most LCD drivers need their own
adequate frame rate. The frame rate is calculated as follows;
Frame Rate = 1/ [ { (VSPW+1) + (VBPD+1) + (LI 1) + (VFPD+1) } x {(HSPW+1) + (HBPD +1)
+ (HFPD+1) + ( 1) } x { (1 ) / ( Frequency of Clock source ) } ]
4.2 i80-SYSTEM INTERFACE
The VTIME generates the control signals such as, SYS_CS0, SYS_CS1, SYS_RS and SYS_WE signal for i80-
System Interface. The LCDIFMODE, LCD_CS_SETUP, LCD_WAIT_WR and LCD_HOLD_WR registers control
these signals. Refer to figure 21-11.
Содержание S3C2416
Страница 33: ...S3C2416X RISC MICROPROCESSOR PRODUCT OVERVIEW 1 5 3 BLOCK DIAGRAM Figure 1 1 S3C2416X Block Diagram ...
Страница 38: ...PRODUCT OVERVIEW S3C2416X RISC MICROPROCESSOR 1 10 153 AIN 1 U14 195 EINT 10 GPG2 K15 237 SDATA 14 C18 ...
Страница 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Страница 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Страница 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Страница 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Страница 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Страница 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Страница 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Страница 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Страница 455: ...S3C2416X RISC MICROPROCESSOR HSMMC CONTROLLER 20 9 4 9 SD COMMAND ISSUE SEQUENCE Figure 20 9 Timeout Setting Sequence ...
Страница 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Страница 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Страница 653: ...S3C2416X RISC MICROPROCESSOR ELECTRICAL DATA 26 15 Figure 26 14 SDRAM READ WRITE Timing Trp 2 Trcd 2 Tcl 2 DW 16 bit ...
Страница 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...
Страница 672: ...MECHANICAL DATA S3C2416X RISC MICROPROCESSOR 30 2 Figure 27 2 330 FBGA 1414 Package Dimension 2 Bottom View ...