SMSC LAN91C111 Uživatelský manuál stáhnout pdf (Strana 119)

10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

SMSC LAN91C111 REV C 119 Revision 1.91 (08-18-08)

DATASHEET

Table 14.2 Receive Timing Characteristics

SYM PARAMETER

LIMIT

UNIT CONDITIONS

MIN TYP MAX

t36 Receive Input Jitter ±3.0 nS pk-pk 100Mbps

±13.5 nS pk-pk 10Mbps

t37 SOI Pulse Minimum Width

Required for Idle Detection

125 200 nS 10Mbps

Measure TPI± from last zero

cross to 0.3V point

Figure 14.12 Receive Timing, End of Packet - 10 MBPS

Table 14.3 Collision and Jam Timing Characteristics

SYM PARAMETER

LIMIT

UNIT CONDITIONS

MIN TYP MAX

t38 Rcv Packet Start to COL

Assert Time

200 nS 100Mbps

700 nS 10Mbps

300 nS 10Mbps

t39 Xmt Packet Start to COL

Assert Time

200 nS 100Mbps

700 nS 10Mbps

t40 Start of Packet to Transmit

JAM Packet Start During JAM

500 nS 100Mbps

1500 nS 10Mbps

t41 Xmt Packet Start to COL

Assert Time

200 nS 100Mbps

700 nS 10Mbps

TPI±

DATA DATADATADATADATA

SOI

1 2 ... 114 115 116 117 118 119 120 121 122 123 124 ... 127 128

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SMSC LAN91C111 Uživatelský manuál Strana 119