54
Figure 4-7-2 Remote Receiver Module
There are 9 interfaces on the the receiver, shown in the following table:
1
2
3
4
5
6
7
8
9
DI/DAT
DO/CMD
NC
GND VDD
CS/SEL
CLK
NC
ACK
Note: Different batches, the appearance of the receiver will be some different, but the pin definition is the
same,so don’t worry about the use.
Di/dat: Signal flow, from the handle to the host, this signal is a 8bit serial data, synchronous transmission in
the clock down the edge. The reading of the signal is done in the process of changing the clock from high to
low.
Do/CMD: Signal flow, from the host to the handle, this signal is relative to DI, the signal is a 8bit serial data,
synchronously transmitted to the clock down the edge.
NC: Empty port; .
GND: Ground;
VDD: The 3~5V power supply;
CS/SEL: Providing trigger signals for handles, the level is low during communication;
CLK: The clock signal is sent by the host to maintain data synchronization;
NC: Empty port;
ACK: the response signal from the handle to the host. This signal changes to low in the last cycle of each
8-bit data sending, and the CS remains low. If the CS signal do not remain low, the PS host will try another
device in about 60 microseconds. The ACK port is not used in programming.
4.7.2 Experimental steps
1. For the sake of simple wiring, the PS2 we use can directly insert the PS2 receiver into the socket. As
shown in Figure 4-7-3
