MT90812 Mitel Networks Corporation, MT90812 Datasheet - Page 95

• Manufacturer Part Number: MT90812
• Description: Integrated Digital Switch (IDX)
• Manufacturer: Mitel Networks Corporation

Advance Information
24.3
AC parameters are either measured with respect to incoming or outgoing clock signals. A list of the Clock
Control Modes for the Local or Expansion Bus streams where the AC parameters are measured with respect to
the outgoing clock signals are listed in Table 24. The parametric values are listed in the following tables.
* Clock Rate/Data Rate=1, however the incoming data is clocked with the PLL generated clock at 3 quarters into the bit cell.
AC Electrical Characteristics - Output Delay Parameters Referenced to Output C4/C8
Signals
† See "Notes" following AC Electrical Characteristics tables.
AC Electrical Characteristics - Input Set and Hold Parameters Referenced to Output C4/
C8 Signals
† See "Notes" following AC Electrical Characteristics tables.
Output Driver Enable Delay
(2.048, 4.096, 8.192 Mb/s)
STo delay from active to High-Z, active
to High-Z
2.048 Mb/s - Sto0,Sto1, EST0
4.096 Mb/s
8.192 Mb/s
Sto Delay (high and low)
from CLK falling (ST-Bus mode)
from CLK rising (GCI mode)
2.048 Mb/s - Sto0,Sto1,EST0
4.096 Mb/s
8.192 Mb/s
Sti Set-up Time
before CLK rising (ST-Bus mode)
before CLK falling (GCI mode)
2.048 Mb/s - Sto0,Sto1,EST1
4.096 Mb/s
8.192 Mb/s
Sti Hold Time
before CLK rising (ST-Bus mode)
before CLK falling (GCI mode)
2.048 Mb/s - Sto0,Sto1,EST1
4.096 Mb/s
8.192 Mb/s
EBUS 2 Mb/s
Local 2 Mb/s
EBUS 4Mb/s
EBUS 8Mb/s
Data Rate
TDM and
AC Parameters Referenced to Outgoing C4 or C8 Clock Signals
Characteristics
Characteristics
Table 24 - Timing Referenced to Output Clock Signals for TDM Streams
C8/F8, C8P, C16
C8/F8, C8P, C16
Clock Control
C4/F4
C4/F4
Mode
all
all
PCS
X
X
1
1
1
1
t
Sym
Sym
t
t
DZ,
t
t
OED
SToD
STiS
STiH
PC0S
t
ZD
X
X
1
1
1
1
C8 (Output)
C8 (Output)
C8 (Output)
C8 (Output)
Min
Min
20
15
10
30
25
25
CLK
C4o
C4o
Max
Max
55
35
40
40
35
40
40
F4o
F4o
FP
F8
F8
F8
F8
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CLK Rate/
Data Rate
3, 11, 14, 15, 19
3, 11, 14, 15, 20
3, 11, 14, 15, 20
3, 11, 14, 15, 19
3, 11, 14, 15, 20
3, 11, 14, 15, 20
3
3, 11, 14, 15, 19
3, 11, 14, 16, 20
3, 11, 14, 16, 20
3, 11, 14, 15, 19
3, 11, 14, 16, 20
3, 11, 14, 16, 20
1*
1*
2
2
2
2
Test Conditions†
Test Conditions†
Timing Diagram
Fig. 40 (ST-Bus) &
Fig. 42 (ST-Bus) &
Fig. 40 (ST-Bus) &
MT90812
Fig. 41 (GCI)
Fig. 43 (GCI)
Fig. 41 (GCI)
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