SPFD54124B Drise, SPFD54124B Datasheet - Page 62

• Manufacturer Part Number: SPFD54124B
• Description: 396-Channel 6-Bit Source Driver
• Manufacturer: Drise

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6.2.30. VSCSAD (37h): Vertical Scroll Start Address of RAM
NOTE: “-” Don’t care, can be set to VDDIO or DGND level
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Description
Restriction
2
1
nd
st
Inst / Para
VSCSAD
Parameter
Parameter
37H
-This command is used together with Vertical Scrolling Definition (33h). These two commands describe the scrolling area
-The Vertical Scrolling Start Address command has one parameter which describes which line in the Frame Memory will
-This command Start the scrolling.
-Exit from V-scrolling mode by commands Partial mode On (12h) or Normal mode On (13h).
When MADCTR ML= ‘0’
When MADCTR ML = ‘1’
NOTE: -When new Pointer position and Picture Data are sent, the result on the display will happen at the next Panel
-Since the value of the Vertical Scrolling Start Address is absolute (with reference to the Frame Memory), it must not enter
SSA[15:0] is based on 1-line unit.
-SSA[15:0] = 0000h, 0001h, 0002h, 0003h, … , 00A1h
and the scrolling mode.
be written as the first line after the last line of the Top Fixed Area on the display as illustrated below:
the fixed area (defined by Vertical Scrolling Definition (33h)-otherwise undesirable image will be displayed on the Panel.
Example:
－When Top Fixed Area=Bottom Fixed Area=00, Vertical Scrolling Area=160 and Vertical Scrolling Pointer SSA= ’3’.
Example:
－When Top Fixed Area= Bottom Fixed Area=00, Vertical Scrolling Area=160 and SSA= ’3’
Scroll start address
D/CX
Scroll start address
-SSA refers to the Frame Memory scan address.
0
1
1
Scan to avoid tearing effect.
SSA[15:0]
SSA[15:0]
WRX
↑
↑
↑
Top-Left (0,0)
Top-Left (0,0)
RDX
1
1
1
D17-8
-
-
-
Memory
Memory
VSCSAD (Vertical Scroll Start Address of RAM)
SSA15 SSA14 SSA13 SSA12 SSA11 SSA10
SSA7
D7
0
SSA6
D6
0
62
(Example)
(Example)
Scan address
Scan address
SSA5
158
159
159
158
D5
∣
∣
∣
∣
3
2
1
0
0
1
2
3
1
SSA4
D4
1
G159
G160
G159
G160
G1
G2
G3
G4
SSA3
G1
G2
G3
G4
|
|
|
|
D3
0
SSA2
D2
1
Display
Display
SPFD54124B
SSA9
SSA1
Preliminary
D1
1
Preliminary Version: 0.6
SSA8
SSA0
D0
1
APR. 26, 2007
(Code)
(37h)