Cardin Elettronica MORPH433W01 Mode D'emploi page 24

The period (Tp) has a duration of 1ms and is formed as follows:
400μs in which the RDP (data) and RCP (clock) lines are high
300μs in which the RDP is low if the bit is equal to 1 (RCP is always high)
300μs (Tck) in which the RCP is low (RDP maintains the level it had before)
At the end of the period RCP and RDP are once again high
T
= 300
ck μs
T
= 600
d μs
T
= 1
p ms
The serial protocol sends an RS232 standard protocol packet to the DATA0 output (baudrate =
9600, without parity, 8 bits and one stop bit) in the following format:
00C000B B B B B
1 2 3 4 5
where 0 is the ASCII character "0" (30h), B
decimal code and "C" is the transmitted channel according to the following table:
The DATA1 output is activated 200 ms before the packet is sent to DATA0 in the following way:
DATA1
DATA0
1
RCP
RDP
T
d
SERIAL PROTOCOL (BIT SEQUENCE)
0
CHANNEL
A
B
C
D
200ms
1
0
T
T
ck p
B B B B
are the 5 least significant bits of the hexa-
1 2 3 4 5
CHAR
1 (31h)
2 (32h)
4 (34h)
8 (38h)
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