參數(shù)資料
型號: RTL8201CP-VD-LF
廠商: Electronic Theatre Controls, Inc.
英文描述: SINGLE-CHIP/SINGLE-PORT 10/100M FAST ETHERNET PHYCEIVER (With Auto Crossover)
中文描述: SINGLE-CHIP/SINGLE-PORT個(gè)10/100M快速以太網(wǎng)PHYCEIVER(自動(dòng)交叉)
文件頁數(shù): 32/38頁
文件大小: 512K
代理商: RTL8201CP-VD-LF
RTL8201CP
Datasheet
Single-Chip/Port 10/100 Fast Ethernet PHYceiver
27
Track ID: JATR-1076-21 Rev. 1.21
8.2.3. SNI Transmission Cycle Timing
Table 35. SNI Transmission Cycle Timing
Symbol
t
1
t
2
t
3
t
4
t
5
t
8
Description
TXCLK high pulse width
TXCLK low pulse width
TXCLK period
TXEN, TXD0 setup to TXCLK rising edge
TXEN, TXD0 hold after TXCLK rising edge
Transmit latency
Minimum
36
36
80
20
10
Maximum
120
50
Unit
ns
ns
ns
ns
ns
ns
Figure 10 shows an example of a packet transfer from MAC to PHY on the SNI interface.
Note: SNI mode only runs at 10Mbps.
TXCLK
VIH(min)
VIL(max)
t
1
t
3
t
2
TXD0
TXEN
VIH(min)
VIL(max)
t
4
t
5
Figure 10. SNI Transmission Cycle Timing-1
TXCLK
TXEN
TXD0
TPTX+-
t
8
t
9
Figure 11. SNI Transmission Cycle Timing-2
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