参数资料
型号: WBLXT974BHCA8
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP160
封装: ROHS COMPLIANT, PLASTIC, MS-002DD-1, HQFP-160
文件页数: 53/76页
文件大小: 1004K
代理商: WBLXT974BHCA8
Fast Ethernet 10/100 Quad Transceivers — LXT974/LXT975
Datasheet
57
Figure 30. MII - 10BASE-T Receive Timing
Table 35. MII - 10BASE-T Receive Timing Parameters
Parameter
Sym
Min
Typ
1
Max
Units
RXD, RX_DV, RX_ER setup to RX_CLK High
t1
10
ns
RXD, RX_DV, RX_ER hold from RX_CLK High
t2
10
ns
TPI in to RXD out (Rx latency)
t3
73
2
BT
CRS asserted to RXD, RX_DV, RX_ER asserted
t4
0
692
BT
RXD, RX_DV, RX_ER de-asserted to CRS de-asserted
t5
0
2.5 - 5.5
6
BT
TPI in to CRS asserted
t6
0
4
5
BT
TPI quiet to CRS de-asserted
t7
0
18
19
BT
TPI in to COL asserted
t8
0
4
5
BT
TPI quiet to COL de-asserted
t9
0
18
19
BT
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production testing.
2. CRS is asserted. RXD/RX_DV are driven at the start of SFD (64 BT).
RX_CLK
RXD,
RX_DV,
RX_ER
CRS
TPI
t3
t4
t2
t6
t1
t7
t5
COL
t8
t9
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