CMX615D4 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX615D4' PDF : 26 Pages View PDF
Digital Line to POTS Interface
CMX615
‘C-BUS’ Timings (See Figure 8)
tCSE
tCSH
tLOZ
tHIZ
tCSOFF
tNXT
tCK
tCH
tCL
tCDS
tCDH
tRDS
tRDH
CSN-Enable to Clock-High time
Last Clock-High to CSN-High time
Clock-Low to Reply Output enable time
CSN-High to Reply Output 3-state time
CSN-High Time between transactions
Inter-Byte Time
Clock-Cycle time
Serial Clock-High time
Serial Clock-Low time
Command Data Set-Up time
Command Data Hold time
Reply Data Set-Up time
Reply Data Hold time
Notes
Min.
100
100
0.0
-
1.0
500
500
200
200
75
25
75
0
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
Max. Unit
-
ns
-
ns
-
ns
1.0
µs
-
µs
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
Note: These timings are for the latest version of the ‘C-BUS’ as embodied in the CMX615, and allow faster
transfers than the original ‘C-BUS’ timings given in CML Publication D/800/Sys/3 July 1994.
Typical UART Timings (See Figure 3a and 3b)
TFSK
TDLY
TDRDY
TUFL
(delay through the modulator)
(1 bit-period)
(1/4 bit-period)
(3/4 bit-period)
Notes Min.
-
-
-
-
Typ.
106
833
208
625
Max. Unit
-
µs
-
µs
-
µs
-
µs
Figure 8 ‘C-BUS’ Timing
© 1999 Consumer Microcircuits Limited
24
D/615/4
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