T-8110L AGERE [Agere Systems], T-8110L Datasheet - Page 123
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T-8110L
Manufacturer Part Number
T-8110L
Description
Manufacturer
AGERE [Agere Systems]
Datasheet
1.T-8110L.pdf
(164 pages)
- Current page: 123 of 164
- Download datasheet (3Mb)
February 2004
Agere Systems Inc.
12 Connection Control
12.2 Switching Operation
12.2.2 Standard Switching (continued)
12.2.2.1 Subrate (continued)
Subrate Unpacking of Incoming Bytes (continued)
Notes:
Connectivity is as follows:
From stream e, time slot n + 3, bits[1:0] to stream j, time slot n + 8, bits[7:6].
From stream f, time slot n + 5, bits[3:2] to stream i, time slot n + 8, bits[5:4].
From stream f, time slot n + 6, bits[5:4] to stream h, time slot n + 8, bits[1:0].
From stream f, time slot n + 7, bits[7:6] to stream g, time slot n + 8, bits[7:6].
Required connection memory programming is as follows:
Eight 1/2 simplex connections are required to unpack one incoming byte to four separate outgoing di-bits.
From stream e, time slot n + 3. Connection memory subrate field = 0100X11.
From stream f, time slot n + 5. Connection memory subrate field = 0101X10.
From stream f, time slot n + 6. Connection memory subrate field = 0110X00.
From stream f, time slot n + 7. Connection memory subrate field = 0111X11.
To stream g, time slot n + 8. Connection memory subrate field is don't care.
To stream h, time slot n + 8. Connection memory subrate field is don't care.
To stream i, time slot n + 8. Connection memory subrate field is don't care.
To stream j, time slot n + 8. Connection memory subrate field is don't care.
STREAM g, DI-BIT CHANNELS OUT
STREAM h, DI-BIT CHANNELS OUT
STREAM e, DI-BIT CHANNELS IN
STREAM i, DI-BIT CHANNELS OUT
STREAM j, DI-BIT CHANNELS OUT
STREAM f, DI-BIT CHANNELS IN
(BROADCASTS OF THE ORIGINAL INPUT)
TIME SLOT
BIT POSITIONS OF DI-BITS
WITHIN THE DATA BYTE
Figure 26. Subrate Switching Example, Byte Unpacking
(continued)
(continued)
7:
a
4
6
TIME SLOT
n + 3
5:
d
2
4
3:
b
4
2
1:
0
c
3
7:
6
5:
n + 4
4
3:
2
1:
0
7:
a
4
6
BROADCASTED INCOMING BYTE
n + 5
5:
4
d
2
FRAME (8 kHz)
3:
b
4
Ambassador T8110L H.100/H.110 Switch
2
1:
c
3
0
7:
a
4
6
5:
n + 6
d
2
4
3:
b
4
2
1:
0
c
3
7:
a
4
6
5:
n + 7
d
2
4
3:
b
4
2
1:
c
3
0
7:
X X X
X
a
4
c
3
6
n + 8
5:
X X X
X X X
4
b
4
X X
3:
2
1:
d
2
0
123
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