Datasheet

ST7735
V1.7 81 2009-12-04
10.1.3 RDDID (04h): Read Display ID
04H RDDID (Read Display ID)
Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
RDDID 0 ↑ 1 - 0 0 0 0 0 1 0 0 (04h)
1
st
parameter 1 1 ↑ - - - - - - - - - -
2
nd
parameter 1 1 ↑ - ID17 ID16 ID15 ID14 ID13 ID12 ID11 ID10
3
rd
parameter 1 1 ↑ - 1 ID26 ID25 ID24 ID23 ID22 ID21 ID20
4
th
parameter 1 1 ↑ - ID37 ID36 ID35 ID34 ID33 ID32 ID31 ID30
Description
-This read byte returns 24-bit display identification information.
-The 1st parameter is dummy data
-The 2nd parameter (ID17 to ID10): LCD module’s manufacturer ID.
-The 3rd parameter (ID26 to ID20): LCD module/driver version ID
-The 4th parameter (ID37 to UD30): LCD module/driver ID.
-Commands RDID1/2/3(DAh, DBh, DCh) read data correspond to the parameters 2,3,4 of the command 04h,
respectively.
“-“ Don’t care
Default
Default Value
Status
ID1 ID2 ID3
Power On Sequence - NV Value NV Value
S/W Reset - NV Value NV Value
H/W Reset - NV Value NV Value
Flow Chart