參數(shù)資料
型號(hào): 9863
廠商: Intel Corp.
英文描述: Advanced 10/100 Umnmanaged Repeater
中文描述: 高級(jí)10/100 Umnmanaged直放站
文件頁(yè)數(shù): 49/56頁(yè)
文件大小: 719K
代理商: 9863
Advanced 10/100 Unmanaged Repeater
LXT9883/9863
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
49
Figure 19. 100BASE-TX MII-to-TP Port Timing
Table 28. 100BASE-TX MII-to-TP Port Timing Parameters
Parameter
Sym
t
2A
t
2B
t
2C
t
2D
t
2E
Min
Typ
1
Max
Units
2
Test Condition
TXD, TX_EN, TX_ER Setup to TX_CLK High
10
ns
TXD, TX_EN, TX_ER Hold from TX_CLK High
5
ns
TX_EN sampled to CRS asserted
0
4
BT
TX_EN sampled to CRS de-asserted
0
16
BT
TX_EN sampled to TPOP/N active (Tx latency)
46
BT
1. Typical values are at 25
°
C and are for design aid only; not guaranteed and not subject to production testing.
2. Bit Time (BT) is the duration of one bit as transferred to/from the MAC and is the reciprocal of bit rate. BT for
100BASE-T = 10
-8
s or 10ns.
TX_CLK
TXD,
TX_EN,
TX_ER
CRS
TPOP/N
t
2A
t
2B
t
2C
t
2D
t
2E
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