DS2156L+ Maxim Integrated Products, DS2156L+ Datasheet - Page 172

• Manufacturer Part Number: DS2156L+
• Description: IC TXRX T1/E1/J1 1-CHIP 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS2156L+

• Function: Single-Chip Transceiver
• Interface: E1, J1, T1, TDM, UTOPIA II
• Number Of Circuits: 1
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

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