Datasheet

ST7735
V1.7 105 2009-12-04
10.1.23 PTLAR (30h): Partial Area
30H PTLAR (Partial Area)
Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
PTLAR 0 ↑ 1 - 0 0 1 1 0 0 0 0 (30h)
1st
parameter
1 ↑ 1 - PSL15 PSL14 PSL13 PSL12 PSL11 PSL10 PSL9 PSL8
2nd
parameter
1 ↑ 1 - PSL7 PSL6 PSL5 PSL4 PSL3 PSL2 PSL1 PSL0
3rd
parameter
1 ↑ 1 - PEL15 PEL14 PEL13 PEL12 PEL11 PEL10 PEL9 PEL8
4th
parameter
1 ↑ 1 - PEL7 PEL6 PEL5 PEL4 PEL3 PEL2 PEL1 PEL0
Description
-This command defines the partial mode’s display area.
-There are 4 parameters associated with this command, the first defines the Start Row (PSL) and the second the End Row
(PEL), as illustrated in the figures below. PSL and PEL refer to the Frame Memory row address counter.
-If End Row > Start Row, when MADCTL ML=’0’
Non-display area
Non-display area
Partial display area
PSL [7:0]
PEL [7:0]
Start row
End row
-If End Row > Start Row, when MADCTL ML=’1’
Non-display area
Non-display area
Partial display area
PSL [7:0]
PEL [7:0]
Start row
End row
-If End Row < Start Row, when MADCTL ML=’0’
Partial display area
PSL [7:0]
PEL [7:0]
Start row
End row
Non-display area
Partial display area
-If End Row = Start Row then the Partial Area will be one row deep.
Default
Default Value
Status
PSL [15:0] PEL [15:0]
GM[2:0] “xxx” GM[2:0]=”011” GM[2:0]=”000”
Power On Sequence 0000h 009Fh 00A1h
S/W Reset 0000h 009Fh 00A1h
H/W Reset 0000h 009Fh 00A1h