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MT8982AS Datasheet(PDF) 10 Page - Mitel Networks Corporation

Part # MT8982AS
Description  ISO-CMOS ST-BUS??FAMILY Small Digital Switch (MiniDX)
PDF  19 Pages
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Manufacturer  MITEL [Mitel Networks Corporation]
Direct Link  http://www.mitel.com
Logo MITEL - Mitel Networks Corporation

MT8982AS Datasheet(HTML) 10 Page - Mitel Networks Corporation

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MT8982 ISO-CMOS
2-40
Figure 8 - GCI/ST-BUS Interface
PCM
Streams
GCI CLK
(4.096 MHz)
GCI Frame Pulse
STo0
STi0
C4i
F0i
F0o
STi1
STo1
STo
STi
C4i
F0i
MT8982 MiniDx
Mitel Basic Rate
Phone Components
ST-BUS Frame Pulse
MT8982. Therefore, to connect GCI channel B1 to
ST-BUS
channel
B1,
the
MT8982
must
be
programmed to connect channel 5 to channel 2. The
five channel offset ensures that all four basic rate
channels will be switched together within one frame
period, regardless which direction the data is being
switched.
The five channel offset for GCI channels is required
even in GCI to GCI switching systems. For example,
to switch GCI channel B1 to GCI channel B2, the
MT8982 must be programmed to connect channel 5
to channel 6.
Figure 9 - ST-BUS/GCI Timing with ST-BUS as Master
Figure 10 - ST-BUS/GCI Timing with GCI as Master
Figure 11 - Switching GCI and ST-BUS Basic Rate Access Channels
Channel 0
Channel 4
Channel 5
F0i
C4i
F0o
Channel 0
Channel 4
Channel 5
F0i
C4i
F0o
ST-BUS
GCI
CH0
CH1
CH2
CH3
D
C
B1
B2
M
D and C/I
- ST-BUS and MiniDx Channels
B1
B2
CH0(5)
CH1(6)
CH2(7)
CH3(8)
- GCI (MiniDx) Channels



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