DP83848VYB National Semiconductor, DP83848VYB Datasheet - Page 52

• 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

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Bit
4
3
2
1
0
HEARTBEAT_DIS
JABBER_DIS
RESERVED
RESERVED
POLARITY
Bit Name
Default
RO/LH
0, RW
1, RW
0, RW
0, RW
10Mb Polarity Status:
This bit is a duplication of bit 12 in the PHYSTS register. Both bits will be
cleared upon a read of 10BTSCR register, but not upon a read of the PHYSTS
register.
1 = Inverted Polarity detected.
0 = Correct Polarity detected.
RESERVED: Must be zero.
RESERVED: Must be set to one.
Heartbeat Disable: This bit only has influence in half-duplex 10Mb mode.
1 = Heartbeat function disabled.
0 = Heartbeat function enabled.
When the device is operating at 100Mb or configured for full duplex
operation, this bit will be ignored - the heartbeat function is disabled.
Jabber Disable:
Applicable only in 10BASE-T.
1 = Jabber function disabled.
0 = Jabber function enabled.
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Description