參數(shù)資料
型號: MT90812
廠商: Mitel Networks Corporation
英文描述: Integrated Digital Switch (IDX)(集成數(shù)字開關(guān))
中文描述: 綜合數(shù)字交換機(IDX的)(集成數(shù)字開關(guān))
文件頁數(shù): 89/105頁
文件大?。?/td> 334K
代理商: MT90812
Advance Information
MT90812
85
Figure 39 - C16 HMVIP Input Clock Reference
Notes: 1. CMOS output 2. TTL input
24.1
Timing References for TDM Streams
The Expansion Bus operates in two modes; IDX Link and TDM Link modes (refer to Section 3.0). In TDM Link
mode there are three data rates supported, 2.048, 4.096, and 8.192 Mb/s. The IDX Link mode supports 8.192
Mb/s data rate. Depending on the Clock Control Mode selected the serial stream AC parameters are specified
with respect to a given clock reference. Table 22 lists the timing references used for the TDM streams given the
Clock Control Mode, PCS and PCOS settings. The timing diagrams to be used for the given TDM stream and
timing mode are listed for both ST-Bus and GCI modes. The clock reference is labelled, CLK, in each diagram
and is either C4i, C4o, C8 (as an input or output), or C16, where C16 refers to 16.384 MHz signal applied to
C8P_C16 pin. The frame pulse reference is labelled FP in each diagram and is either F4i, F4o, F8(input) or
F8(output).
TDM and
Data Rate
Clock
Control Mode
PCS
PC0S
CLK
FP
CLK Rate/
Data Rate
Timing Diagram
Local 2 Mb/s
all
0
0
C4i
F4i
2
Fig. 40 (ST-Bus) & Fig. 41
(GCI)
Local 2 Mb/s
all
1
1
C4o
F4o
2
Fig. 40 (ST-Bus) & Fig. 41
(GCI)
EBUS 2 Mb/s
(TDM Link)
all
0
0
C4i
F4i
2
Fig. 40 (ST-Bus) & Fig. 41
(GCI)
EBUS 2 Mb/s
(TDM Link)
all
1
1
C4o
F4o
2
Fig. 40 (ST-Bus) & Fig. 41
(GCI)
EBUS 4Mb/s
(TDM Link)
C4/F4
X
X
C8
(Output)
F8
(Output)
2
Fig. 40 (ST-Bus) & Fig. 41
(GCI)
F4i2
VH
VL
V
TT
C4i
2
VH
VL
V
TT
C16
2
VH
VL
V
TT
F8
1
V
CT
C8
1
V
CT
F4o
1
V
CT
C4o
1
V
CT
C2o
1
V
CT
t
F4iW
t
F4iS
t
F4iH
t
c8od
t
c4od
t
c2od
t
f8ol
t
f8oh
t
f4ol
t
f4oh
t
diff
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