Datasheet

ST7735
V1.7 99 2009-12-04
10.1.19 CASET (2Ah): Column Address Set
2AH CASET(Colume Address Set)_
Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
CASET(2Ah) 0 ↑ 1 - 0 0 1 0 1 0 1 0 (2Ah)
1
st
parameter 1 ↑ 1 - XS15 XS14 XS13 XS12 XS11 XS10 XS9 XS8
2
nd
parameter 1 ↑ 1 - XS7 XS6 XS5 XS4 XS3 XS2 XS1 XS0
3
rd
parameter 1 ↑ 1 - XE15 XE14 XE13 XE12 XE11 XE10 XE9 XE8
4
th
parameter 1 ↑ 1 - XE7 XE6 XE5 XE4 XE3 XE2 XE1 XE0
Description
-The value of XS [7:0] and XE [7:0] are referred when RAMWR command comes.
- Each value represents one column line in the Frame Memory.
XS[7:0] XE[7:0]
Restriction
XS [15:0] always must be equal to or less than XE [15:0]
When XS [15:0] or XE [15:0] is greater than maximum address like below, data of out of range will be ignored.
1. 128X160 memory base (GM = ’011’)
(Parameter range: 0 < XS [15:0] < XE [15:0] < 127 (007Fh)): MV=”0”)
(Parameter range: 0 < XS [15:0] < XE [15:0] < 159 (009Fh)): MV=”1”)
2. 132X162 memory base (GM = ’000’)
(Parameter range: 0 < XS [15:0] < XE [15:0] < 131 (0083h)): MV=”0”)
(Parameter range: 0 < XS [15:0] < XE [15:0] < 161 (00A1h)): MV=”1”)
Default
Default Value
GM Status Status
XS [7:0] XE [7:0] (MV=’0 ’) XE [7:0] (MV=’1’)
Power On
Sequence
0000h 007Fh (127)
S/W Reset 0000h 007Fh (127) 009Fh (159)
GM=’011’
(128x160
memory base)
H/W Reset 0000h 007Fh (127)
Power On
Sequence
0000h 0083h (131)
S/W Reset 0000h 0083h (131) 00A1h (161)
GM=’000’
(132x162
memory base)
H/W Reset 0000h 0083h (131)