Datasheet

(20) Temperature Sensor Write (TSW) (R42H)
Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0
Write External Temperature
Sensor
0 0
0 1 0 0 0 0 1 0
0 1 WATTR[7:0]
0 1 WMSB[7:0]
0 1 WLSB[7:0]
This command reads the temperature sensed by the temperature sensor.
WATTR: D[7:6]: I
2
C Write Byte Number
00b : 1 byte (head byte only)
01b : 2 bytes (head byte + pointer)
10b : 3 bytes (head byte + pointer + 1st parameter)
11b : 4 bytes (head byte + pointer + 1st parameter + 2nd parameter)
D[5:3]: User-defined address bits (A2, A1, A0)
D[2:0]: Pointer setting
WMSB[7:0]: MSByte of write-data to external temperature sensor.
WLSB[7:0]: LSByte of write-data to external temperature sensor.
(21) Temperature Sensor Read (TSR) (R43H)
Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0
Read External Temperature
Sensor
0 0 0 1 0 0 0 0 1 1
1 1 RMSB[7:0]
1 1 RLSB[7:0]
This command reads the temperature sensed by the temperature sensor.
RMSB[7:0]: MSByte read data from external temperature sensor
RLSB[7:0]: LSByte read data from external temperature sensor
(22) VCOM And Data Interval Setting (CDI) (R50H)
Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0
Set Interval Between Vcom and
Data
0 0
0 1 0 1 0 0 0 0
0 1 VBD[1:0] DDX[1:0] CDI[3:0]
This command indicates the interval of Vcom and data output. When setting the vertical back porch, the total blanking will be kept
(20 Hsync).
VBD[1:0]: Border data selection
B/W/Red mode (BWR=0)
DDX[0] VBD[1:0] LUT DDX[0] VBD[1:0] LUT
0
00 Floating
1(Default)
00 LUTB
01 LUTR 01 LUTW
10 LUTW 10 LUTR
11 LUTB 11 Floating
4.2" e-Paper
www.waveshare.com
19／45