DS3181 Maxim Integrated Products, DS3181 Datasheet - Page 39

• Manufacturer Part Number: DS3181
• Description: Network Controller & Processor ICs DS3-E3 ATM-Packet PH Y with Built-in Line
• Manufacturer: Maxim Integrated Products

Specifications of DS3181

• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 44.736 Mbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 280 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: TEBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2 HDB3/B3ZS/AMI Non-LIU Line Interface Mode
The Non-LIU Line Interface Mode disables the LIU and a digital representation of AMI is output/input on the
TPOSn/TNEGn signals and the RPOSn/RNEGn signals. Selection between AMI and HDB3/B3ZS is made via the
LINE.TCR Register. HDB3 and B3ZS selection is controlled by the configuration selected by the FM bits. DS3 and
CC52 frame modes select the B3ZS line code while the E3 modes select the HDB3 line code. The DS3AIS signal
can only be generated in non-OHM DS3 modes.
Table 7-2. HDB3/B3ZS/AMI Non-LIU Mode Configuration Registers
LIU Off, B3ZS or HDB3
LIU Off, AMI
Figure 7-2. HDB3/B3ZS/AMI Non-LIU Line Interface Mode
TLCLKn
RLCLKn
TPOSn
TNEGn
RNEGn
RPOSn
MODE
Clock Rate
Adapter
LM[2:0]
000
000
Decoder
Encoder
HDB3
B3ZS/
B3ZS/
HDB3
TUA1
LINE.RCR.RZSD
LINE.TCR.TZSD
TAIS
AND
0
1
FROM FRAMING LOGIC
OR EXTERNAL PINS
39
TO FRAMING LOGIC
OR EXTERNAL PINS
PORT.CR2
TLEN
1
1
n = port # (1-4)