參數(shù)資料
型號(hào)： LAN8187I
廠商： SMSC Corporation
英文描述： High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
中文描述： 高性能信息產(chǎn)業(yè)部及RMII 10/100以太網(wǎng)PHY與HP Auto - MDIX功能
文件頁數(shù)： 53/66頁
文件大小： 545K
代理商： LAN8187I
High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
Datasheet
Chapter 6 Electrical Characteristics
SMSC LAN8187/LAN8187I
53
Revision 0.6 (02-24-06)
DATASHEET
The timing diagrams and limits in this section define the requirements placed on the external signals
of the Phy.
6.1
Serial Management Interface (SMI) Timing
The Serial Management Interface is used for status and control as described in
Section 4.13
.
Figure 6.1 SMI Timing Diagram
Table 6.1 SMI Timing Values
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
NOTES
T1.1
MDC minimum cycle time
400
ns
T1.2
MDC to MDIO (Write) delay
0
300
ns
T1.3
MDIO (Read) to MDC setup
10
ns
T1.4
MDIO (Read) to MDC hold
10
ns
MDC
T1.1
T1.3
T1.2
Valid Data
Valid Data
T1.4
MDIO
(Read from PHY)
MDIO
(Write to PHY)
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