Datasheet

MR24BSD1)
!
7!
3.2. pin descriptions
Interface
Pins
Description
Typical
values
Description
Interface
1
1
5V
5.0V
Positive power input
2
GND
Ground
3
RX
Serial port reception
4
TX
Serial port send
5
S1
3.3V/0V
occupied/unoccupied
6
S2
3.3V.0V
Stationary / Active
Interface
2
1
3V3
3.3V
Output power
2
GND
Ground
3
SL
Reserved
4
SD
Reserved
5
GP1
Spare expansion pins
6
GP2
Spare expansion pins
7
GP3
Spare expansion pins
8
GP4
Spare expansion pins
Notes
1. S1 output: high level - occupied, low level - unoccupied.
2. S2 output: high level - active, low level - stationary
3. GP1 to GP4 are parameter selection controls, which can be redefined
according to user requirements.
4. The output signals of this interface are all at 3.3V level.