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TLK105 Datasheet, PDF (85/99 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer Transceiver
TLK105
TLK106
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9.6.15 10Base-T Receive Timing (Start of Packet)
SLLSEB8A – AUGUST 2012 – REVISED MARCH 2013
Table 9-15. 10Base-T Receive Timing (Start of Packet)
PARAMETER
TEST CONDITIONS
MIN
t1
Carrier Sense Turn On Delay (PMD Input Pair to CRS)
t2
RX_DV Latency(1)
t3
Receive Data Latency
Measurement shown from
SFD
(1) 10Base-T RX_DV Latency is measured from first bit of decoded SFD on the wire to the assertion of RX_DV
TYP MAX UNIT
550 1000 ns
14
bits
14
bits
1st SFD Bit Decoded
10 10 10 10 10 11
TPRD
t1
CRS
RX_CLK
RX_DV
RXD[3:0]
t2
0000
t3
Preamble
SFD
Data
Figure 9-15. 10Base-T Receive Timing (Start of Packet)
9.6.16 10Base-T Receive Timing (End of Packet)
Table 9-16. 10Base-T Receive Timing (End of Packet)
PARAMETER
t1
Carrier Sense Turn Off Delay
TEST CONDITIONS
MIN TYP MAX UNIT
1.8
μs
1
0
1
IDLE
PMD Input Pair
RX_CLK
t1
CRS
Figure 9-16. 10Base-T Receive Timing (End of Packet)
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