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5222-DS00-R Datasheet(PDF) 66 Page - Broadcom Corporation. |
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5222-DS00-R Datasheet(HTML) 66 Page - Broadcom Corporation. |
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66 / 76 page ![]() BCM5222 Preliminary Data Sheet 7/20/04 Broadcom Corporation Page 54 Timing and AC Characteristics Document 5222-DS02-405-R Table 39: MII 10BASE-T Receive Timing Parameter Symbol Min Typical Max Unit RXC Cycle Time RXC_CYCLE 400 ns RXC High/Low Time 200 ns CRS Assert after Receive Analog Data RX_CRS_BT 300 ns RXC Valid after CRS Assert RXC_VALID 2000 ns RXDV Assert after Receive Analog Data RX_RXDV 2300 ns RXDV Deassert after Receive Analog EOP ends RX_NOT_RXDV 560 ns CRS Deassert after Receive Analog EOP ends RX_NOT_CRS 560 ns Table 40: MII 10BASE-T Collision Timing Parameter Symbol Min Typical Max Unit COL Assert after Receive Analog (while transmitting) RX_COL TBD ns COL Deassert after TXEN Deassert (while receiving) TXEN_NOT_CO L TBD ns COL Assert after TXEN Assert (while receiving) TXEN_COL TBD ns COL Deassert after Receive Analog ends (while transmitting) RX_NOT_COL TBD ns Table 41: 10BASE_T Serial Transmit Timing Parameter Symbol Min Typical Max Unit TXC Cycle Time TXC 95 100 105 ns TXC Low Time TXC High Time TXC_LO TXC_HIGH 35 50 65 ns TXC Rise Time TXC Fall Time TXC_RISE TXC_FALL 210 ns TXEN, TXD0 to TXC Rising TXEN_SETUP 10 TXEN, TXD0 Hold after TXC Rising TXEN_HOLD 4 TXEN to TD± Start TXEN_TDATA 500 ns TXEN to TD± End TXEN_QUIET 500 ns |
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