DP83849CVS/NOPB National Semiconductor, DP83849CVS/NOPB Datasheet - Page 62

• Manufacturer Part Number: DP83849CVS/NOPB
• Description: IC TXRX ETHERNET PHY DUAL 80TQFP
• Manufacturer: National Semiconductor
• Type: Transceiverr

Specifications of DP83849CVS/NOPB

• Number Of Drivers/receivers: 2/2
• Protocol: Ethernet
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP, 80-VQFP
• Data Rate: 100Mbps
• Supply Voltage Range: 3V To 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 80
• Operating Temperature Range: 0°C To +70°C
• Msl: MSL 3 - 168 Hours
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Data Rate Max: 10Mbps
• For Use With: DP83849CVS-EVK - BOARD EVALUATION DP83849CVS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *DP83849CVS; *DP83849CVS/NOPB; DP83849CVS

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Bit
4:3
1:0
8
7
6
5
2
Table 35. 100 Mb/s PCS Configuration and Status Register (PCSR), address 16h (Continued)
FORCE_100_OK
NRZI_BYPASS
SD_OPTION
DESC_TIME
RESERVED
RESERVED
RESERVED
Bit Name
Default
1, RW
0, RW
0, RW
0, RW
0, RO
0,RO
0,RO
Signal Detect Option:
1 = Default operation. Link will be asserted following detection of
valid signal level and Descrambler Lock. Link will be maintained as
long as signal level is valid. A loss of Descrambler Lock will not
cause Link Status to drop.
0 = Modified signal detect algorithm. Link will be asserted following
detection of valid signal level and Descrambler Lock. Link will be
maintained as long as signal level is valid and Descrambler re-
mains locked.
Descrambler Timeout:
Increase the descrambler timeout. When set this should allow the
device to receive larger packets (>9k bytes) without loss of syn-
chronization.
1 = 2ms
0 = 722us (per ANSI X3.263: 1995 (TP-PMD) 7.2.3.3e)
RESERVED:
Must be zero.
Force 100Mb/s Good Link:
1 = Forces 100Mb/s Good Link.
0 = Normal 100Mb/s operation.
RESERVED:
Must be zero
NRZI Bypass Enable:
1 = NRZI Bypass Enabled.
0 = NRZI Bypass Disabled.
RESERVED:
Must be zero.
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Description