DS2151QNB+ Maxim Integrated, DS2151QNB+ Datasheet - Page 20

• Manufacturer Part Number: DS2151QNB+
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

Specifications of DS2151QNB+

• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 2.048 Mbps
• Supply Current (max): 65 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC-44
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 5 V
• Supply Voltage - Max: 5.25 V
• Supply Voltage - Min: 4.75 V
• Part # Aliases: 90-2151Q+NB0

RIR1: RECEIVE INFORMATION REGISTER 1 (Address = 22 Hex)
(MSB)
COFA
SYMBOL
COFA
RESE
16ZD
RESF
SEFE
B8ZS
8ZD
FBE
8ZD
POSITION
RIR1.7
RIR1.6
RIR1.5
RIR1.4
RIR1.3
RIR1.2
RIR1.1
RIR1.0
16ZD
NAME AND DESCRIPTION
Change of Frame Alignment. Set when the last resync
resulted in a change of frame or multiframe alignment.
Eight 0 Detect. Set when a string of eight consecutive 0s have
been received at RPOS and RNEG.
Sixteen 0 Detect. Set when a string of 16 consecutive 0s have
been received at RPOS and RNEG.
Receive Elastic Store Full. Set when the receive elastic store
buffer fills and a frame is deleted.
Receive Elastic Store Empty. Set when the receive elastic
store buffer empties and a frame is repeated.
Severely Errored Framing Event. Set when 2 out of 6
framing bits (Ft or FPS) are received in error.
B8ZS Codeword Detect. Set when a B8ZS codeword is
detected at RPOS and RNEG independent of whether the B8ZS
mode is selected or not via CCR2.6.
Frame Bit Error. Set when a Ft (D4) or FPS (ESF) framing
bit is received in error.
RESF
20 of 60
RESE
SEFE
B8ZS
(LSB)
FBE