ds2156gn Maxim Integrated Products, Inc., ds2156gn Datasheet - Page 172

• Manufacturer Part Number: ds2156gn
• Description: Ds2156, Ds2156l, Ds2156ln T1/e1/j1 Single-chip Transceiver Tdm/utopia Ii Interface
• Manufacturer: Maxim Integrated Products, Inc.

CELL XMIT TO:
Figure 24-2. Polling Phase and Selection Phase at Transmit Interface
Note that the active PHY (PHY N) is polled in octet P48. At this time, according to the UTOPIA Level 1
specification, the UT-CLAV signal of the PHY indicates the possibility of a subsequent cell transfer.
Polling of PHY N before octet P44 would be possible but it does not indicate availability of the next cell.
UT-ADDRx
UT-DATAx
UT-CLAV
UT-ENB
UT-CLK
UT-SOC
1
N+2
P35
2
N+2
P36
1F
3
P37
N-3
4
N-3
P38
1F
5
P39
N-2
6
N-2
P40
1F
POLLING
7
PHY N
P41
N-1
8
N-1
P42
1F
9
172 of 265
N+3
P43
10
N+3
P44
1F
11
N+1
P45
12
N+1
P46
1F
13
P47
N
14
SELECTION
P48
1F
N
15
N+3
16
N+3
H1
1F
17
N+1
H2
18
PHY N+3
POLLING
N+1
H3
1F
19
N-1
H4
20