BU6566GVW_09 ROHM [Rohm], BU6566GVW_09 Datasheet - Page 13

• Manufacturer Part Number: BU6566GVW_09
• Description: Camera Image Processors Compatible with JPEG Image
• Manufacturer: ROHM [Rohm]

4. LCD transfer timing
（Note1）In LCD_DELAY[1:0]( IDX:49h bit [9:8]) ="00", LCDA0 and LCDD change in LCDWRB falling, and are held to the next LCDWRB falling.
（Note2）Change of LCDWRB is late for LCDA0 and LCDD 15-0 according to a setup of LCD_DELAY [1:0] (at the time of output no-load).
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TRN_CMD=1
TRN_CMD=0
Transfer timing to LCD is shown below.
Waveform at command transfer (T
EXCMD=0
EXCMD=1～7
Waveform at data transfer (T
Nwrb=1
Nwrb=3
EXCMD=0
EXCMD=1-7
Typ. delays 10ns in LCD_DELAY[1:0] ="01." 1tSCLK in LCD_DELAY[1:0] ="10”. 1tSCLK＋Typ.10ns in LCD_DELAY[1:0] ="11”.
LCDCSB
LCDWRB
LCDCSB
LCDWRB
LCDWRB
LCDCSB
LCDWRB
LCDA0
LCDD0-15
LCDWRB
LCDA0
LCDD0-15
LCDA0
LCDD0-15
LCDCSB
＊RESO(IDX:42h bit [2:0]) shows a color resolution setting of LCD.
＊Nwrb, Npix, Tseq, and Th_rest are the parameters determined by RESO.
＊WL, WH are the value of LCDWL, LCDWH of Register MLCDWAV (IDX:49h), respectively.
＊max (WL, WH) shows the maximum of WL and WH.
＊abs(WL-WH) shows the absolute value of (WL-WH).
WL+1
RESO
1
1
WL+1
1
1
1
1
(Tseq/Npix)+5
0
1
2
3
4
5
6
7
(Tseq/Npix)+5
2
(Tseq/Npix)+5
Figure 4-1 MAIN LCD data transfer waveform（Unit：tSCLK）
2
2
2
2
2
Tseq
4
WL+1
WH+1
WH+1
WH+1+Th_rest
Nwrb
Command
2
2
3
1
2
3
3
2
SCLK
WH+2
WL+1
WH+2
WL+1
Command
for all unit)
Tseq
SCLK
Npix
1
1
2
1
1
1
1
1
WH+1
Data
WH+1
for all unit)
(Tseq/Npix)+WH+5
(Tseq/Npix)+WH+4
(Tseq/Npix)+WH+5
(WL+WH+max(WL,WH)+3)×2
WL+1
WH+3
WH+2
WH+3
WH+1+Th_rest
13/16
WH+1+Th_rest
WH+2+Th_rest
WH+2+Th_rest
Nwrb=2
(WL+WH+2)×2
(WL+WH+2)×2
(WL+WH+2)×2
(WL+WH+2)×3
(WL+WH+2)×3
(WL+WH+2)×2
(WL+WH+2)
LCDWRB
1
Tseq
1
WL+1
1
WH+1
WL+1
Data
WH+1
abs(WL-WH)
Tseq
WH+1+Th_rest
Th_rest
0
0
0
0
0
0
0
WH+2+Th_rest
WH+2+Th_rest
WL+1
WH+1+Th_rest
1
Technical Note
2009.04 - Rev.B