参数资料
型号: ZL50408GDC
厂商: CONEXANT SYSTEMS
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA208
封装: 17 X 17 MM, 1.40 MM HEIGHT, MO-192, LBGA-208
文件页数: 42/144页
文件大小: 1779K
代理商: ZL50408GDC
ZL50408
Data Sheet
136
Zarlink Semiconductor Inc.
13.4.8
Reverse Media Independent Interface (RvMII)
Figure 25 - RvMII Transmit Timing
Figure 26 - RvMII Receive Timing
Symbol
Parameter
25 MHz
Notes
Min. (ns)
Max. (ns)
RM2
Mn_RXD[3:0] Input Setup Time
4
CPU_MII_RXD[3:0] Input Setup Time
10
RM3
Mn_RXD[3:0] Input Hold Time
2
CPU_MII_RXD[3:0] Input Hold Time
RM4
Mn_CRS_DV Input Setup Time
4
CPU_MII_CRS_DV Input Setup Time
10
RM5
Mn_CRS_DV Input Hold Time
2
CPU_MII_CRS_DV Input Hold Time
RM6*
Mn_TXEN Output Delay Time
2
14
CL = 20 pF
CPU_MII_TXEN Output Delay Time
0
5
RM7*
Mn_TXD[3:0] Output Delay Time
2
14
CL = 20 pF
CPU_MII_TXD[3:0] Output Delay Time
0
5
* May need to add external delay depending on other MAC device’s min. hold time.
RM6-min
RM6-max
RM7-min
RM7-max
Mn_TXCLK
Mn_TXEN
Mn _TXD[3:0]
RM2
Mn_RXCLK
Mn_RXD[3:0]
Mn_CRS_DV
RM3
RM4
RM5
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