Data Sheet

www.waveshare.com
1840
Bit 7~0
Temperature()
0000 0000b
0
0000 0001b
0.5
0000 0010b
1
..
..
0101 1010b
45
..
..
0110 0100b
50
..
..
1100 1110b
-25
..
..
1111 1110b
-1
1111 1111b
-0.5
This command reads the temperature sensed by the temperature sensor.
TS[7:0]: When TSE (R41h) is set to 0, this command reads internal temperature sensor value.
D[10:0]: When TSE (R41h) is set to 1, this command reads external LM75 temperature sensor value.
BUSY become low after TSC command. When BUSY become high, Parameter can be read.
24) Temperature Sensor Internal/External(TSE) (R41H)
Action
W/R
C/D
D7
D6
D5
D4
D3
D2
D1
D0
Temperature Sensor Selection
0
0
0
1
0
0
0
0
0
1
0
1
TSE
-
This command selects Internal or External temperature sensor.
TSE: Internal temperature sensor switch
0: Select internal temperature sensor (default) 1: Select external temperature sensor.
25) Temperature Sensor Write (TSW) (R42H)
Action
W/R
C/D
D7
D6
D5
D4
D3
D2
D1
D0
Temperature Sensor Selection
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 could write data to the external temperature sensor.
WATTR: D[7:6]: I
2
C Write Byte Number