CMX878D6 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'CMX878D6' PDF : 63 Pages View PDF
Line Powered Modem plus DAA
CMX878
C-BUS Timings (See Figure 15)
tCSE
CSN-Enable to Clock-High time
tCSH
Last Clock-High to CSN-High time
tLOZ
Clock-Low to Reply Output enable
time
tHIZ
CSN-High to Reply Output 3-state
time
tCSOFF
tNXT
tCK
tCH
tCL
tCDS
tCDH
tRDS
tRDH
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
200
200
100
100
75.0
25.0
50.0
0.0
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
-
-
-
1.0
-
-
-
-
-
-
-
-
-
Units
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
Maximum 30pF load on each C-BUS interface line.
Note: These timings are for the latest version of the C-BUS as embodied in the CMX878, and allow faster
transfers than the original C-BUS timings given in CML Publication D/800/Sys/3 July 1994.
Figure 15 C-BUS Timing
© 2002 Consumer Microcircuits Limited
59
D/878/2
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