DP83848VYB National Semiconductor, DP83848VYB Datasheet - Page 47

• Manufacturer Part Number: DP83848VYB
• Description: TRANSCEIVER, ENET PHY, 10/100, 48LQFP
• Manufacturer: National Semiconductor

Specifications of DP83848VYB

• Data Rate: 100Mbps
• No. Of Ports: 1
• Ethernet Type: IEEE 802.3u
• Supply Current: 92mA
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +105°C
• Digital Ic Case Style: LQFP
• No.: RoHS Compliant
• Interface Type: MII Serial, RMII
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Not Compliant

15:8
15:8
7:0
7:0
Bit
Bit
7.2.4 False Carrier Sense Counter Register (FCSCR)
This counter provides information required to implement the “False Carriers” attribute within the MAU managed object class of
Clause 30 of the IEEE 802.3u specification.
7.2.5 Receiver Error Counter Register (RECR)
This counter provides information required to implement the “Symbol Error During Carrier” attribute within the PHY managed object
class of Clause 30 of the IEEE 802.3u specification.
RXERCNT[7:0]
FCSCNT[7:0]
RESERVED
RESERVED
Bit Name
Bit Name
TABLE 24. False Carrier Sense Counter Register (FCSCR), address 0x14h
TABLE 25. Receiver Error Counter Register (RECR), address 0x15h
0, RO/COR
0, RO/COR
Default
Default
0, RO
0, RO
RESERVED: Writes ignored, read as 0
False Carrier Event Counter:
This 8-bit counter increments on every false carrier event. This counter sticks
when it reaches its max count (FFh).
RESERVED: Writes ignored, read as 0.
RX_ER Counter:
When a valid carrier is present and there is at least one occurrence of an invalid
data symbol, this 8-bit counter increments for each receive error detected. This
event can increment only once per valid carrier event. If a collision is present, the
attribute will not increment. The counter sticks when it reaches its max count.
47
Description
Description
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