Rainbow Electronics T5761 - Manual (Page 17)

17
T5760/T5761
4561B–RKE–10/02
Figure 20. Timing Diagram of the Data Clock
Figure 21. Data Clock Disappears Because of a Timing Error
Figure 22. Data Clock Disappears Because of a Logical Error
Dem_out
Data_out (DATA)
DATA_CLK
'1' '1' '1' '1' '1' '0' '1' '1' '0' '1' '0'
Bit check ok
Preburst Data
t
Delay
t
P_Data_Clk
T 2T
Receiving mode,
data clock control logic active
Bit-check mode
Start bit
Dem_out
Data_out (DATA)
DATA_CLK
'1' '1' '1' '1' '1' '0' '1' '1' '0' '1' '0'
Timing error
Data
(T
ee
< T
Lim_min
OR T
Lim_max
<T
ee
< T
Lim_min_2T
OR T
ee
> T
Lim_max_2T
)
T
ee
Receiving mode,
bit check active Receiving mode,
data clock control
logic active
Dem_out
Data_out (DATA)
DATA_CLK
'1' '1' '1' '0' '1' '1' '?' '0' '0' '1' '0'
Logical error (Manchester code violation)
Data
Receiving mode,
bit check aktive
Receiving mode,
data clock control
logic active