ST ST7735R - 10.1.3 RDDID (04 h): Read Display ID

ST7735R
V0.2 84 2009-08-05
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
Read 04h Read 04h
Dummy
Clock
Dummy
Read
Send 2nd
parameter
Send 2nd
parameter
Send 3rd
parameter
Send 3rd
parameter
Send 4th
parameter
Send 4th
parameter
Serial I/F Mode
Parallel I/F Mode
Host
Display
Command
Parameter
Display
Action
Mode
Legend
Sequential
transter