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5220-DS02-R 数据表(PDF) 77 Page - Broadcom Corporation.

部件名 5220-DS02-R
功能描述  10/100BASE-TX/FX Mini Transceiver
PDF  90 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  BOARDCOM [Broadcom Corporation.]
网页  http://www.broadcom.com
标志 BOARDCOM - Broadcom Corporation.

5220-DS02-R 数据表(HTML) 77 Page - Broadcom Corporation.

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Preliminary Data Sheet
BCM5220
04/20/04
Broa d c om Co rp o r a t i o n
Document
5220-DS04-405-R
Auxiliary Status 4 Register (Shadow Register)
Page 65
Table 44 provides the parameters for 10BASE-T serial transmit timing. Figure 12 illustrates 10BASE-T serial transmit start
of timing packet.
RXC High/Low Time
200
ns
CRS Assert after Receive Analog Data
RX_CRS_BT
230
ns
RXC Valid after CRS Assert
RXC_VALID
1.7
µs
RXDV Assert after Receive Analog Data
RX_RXDV
1.2
µs
RXDV Deassert after Receive Analog EOP ends
RX_NOT_RXDV
400
ns
CRS Deassert after Receive Analog EOP ends
RX_NOT_CRS
400
ns
Table 43: MII 10BASE-T Collision Timing
Parameter
Symbol
Min
Typ
Max
Unit
COL Assert after Receive Analog (while
transmitting)
RX_COL
220
ns
COL Deassert after TXEN Deassert (while
receiving)
TXEN_NOT_COL
400
ns
COL Assert after TXEN Assert (while receiving)
TXEN_COL
50
ns
COL Deassert after Receive Analog ends (while
transmitting)
RX_NOT_COL
200
ns
Table 44: 10BASE-T Serial Transmit Timing
Parameter
Symbol
Min
Typ
Max
Unit
TXC Cycle Time
TXC
95
100
105
ns
TXC Low Time
TXC High Time
TXC_LO
TXC_HIGH
97.5
102.5
ns
TXC Rise Time
TXC Fall Time
TXC_RISE
TXC_FALL
25
ns
TXEN, TXD0 to TXC Rising
TXEN_SETUP
10
ns
TXEN, TXD0 Hold after TXC Rising
TXEN_HOLD
0
ns
TXEN to TD+ Start
TXEN_TDATA
350
ns
TXEN to TD+ End
TXEN_QUIET
400
ns
Table 42: MII 10BASE-T Receive Timing
Parameter
Symbol
Min
Typ
Max
Unit



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