DS3181 Maxim Integrated Products, DS3181 Datasheet - Page 41

• 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

7.4 UNI Line Interface—OHM Mode
The line interface is forced into UNI mode when the framer is in any OHM mode; therefore, the LM bits are Don’t
Cares. This mode is the same as the UNI Line Interface Mode except that the OHM pins determine whether the
data is payload or not.
Table 7-4. UNI Line Interface—OHM Mode Configuration Registers
DS3/E3 Overhead
Mask Mode
Clear-Channel
Overhead Mask Mode
Figure 7-4. UNI Line Interface—OHM Mode
TOHMOn
ROHMIn
RLCLKn
TOHMIn
TLCLKn
RDATn
TDATn
MODE
Clock Rate
Adapter
TUA1
0XXX01
1XX0X1
FM[5:0]
LM[2:0]
XXX
XXX
LINE.RCR.RZSD
LINE.TCR.TZSD
41
TO FRAMING LOGIC
OR EXTERNAL PINS
FROM FRAMING LOGIC
OR EXTERNAL PINS
AND
X
X
PORT.CR2
TLEN
1
1
n = port #