zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 137

• Manufacturer Part Number: zl50411
• Description: Managed 9-port Fast Ethernet Switch With Private Vlan
• Manufacturer: Zarlink Semiconductor

13.4.8
* May need to add external delay depending on other MAC device’s min. hold time.
Symbol
RM6*
RM7*
RM2
RM3
RM4
RM5
Reverse Media Independent Interface (RvMII)
Mn_RXD[3:0] Input Setup Time
CPU_MII_RXD[3:0] Input Setup Time
Mn_RXD[3:0] Input Hold Time
CPU_MII_RXD[3:0] Input Hold Time
Mn_CRS_DV Input Setup Time
CPU_MII_CRS_DV Input Setup Time
Mn_CRS_DV Input Hold Time
CPU_MII_CRS_DV Input Hold Time
Mn_TXEN Output Delay Time
CPU_MII_TXEN Output Delay Time
Mn_TXD[3:0] Output Delay Time
CPU_MII_TXD[3:0] Output Delay Time
Parameter
Mn_RXD[3:0]
Mn_CRS_DV
Mn _TXD[3:0]
Mn_RXCLK
Mn_TXCLK
Mn_TXEN
Figure 25 - RvMII Transmit Timing
Figure 26 - RvMII Receive Timing
Zarlink Semiconductor Inc.
ZL50411
137
RM2
RM4
RM6-min
RM7-min
RM6-max
RM7-max
Min. (ns)
RM3
RM5
10
10
4
2
4
2
2
0
2
0
25 MHz
Max. (ns)
14
14
C
C
L
L
= 20 pF
= 20 pF
Notes
Data Sheet