IXP45X INTEL [Intel Corporation], IXP45X Datasheet - Page 121

• Manufacturer Part Number: IXP45X
• Description: Product Line of Network Processors
• Manufacturer: INTEL [Intel Corporation]

Datasheet—Intel
Figure 24.
Table 59.
Figure 25.
Table 60.
August 2006
Document Number:
Source Synchronous SMII Input Timings
Source Synchronous SMII Input Timings Values
MII Output Timings
MII Output Timings Values
®
Notes:
1.
Notes:
1.
2.
Symbol
Symbol
306261-004US
IXP45X and Intel
T
T
T
T
eth_tx_data[7:0]
1
2
3
4
SMII_INPUTS
SMII_RXCLK
Timing was designed for a system load between 5pF and 15pF
These values satisfy t the MII specification requirement of 0 ns to 25 ns clock to output delay.
Timing was designed for a system load between 5 pF and 15 pF.
eth_tx_clk
eth_tx_en
Clock to output delay for ETH_TXDATA and
ETH_TXEN.
ETH_TXDATA and ETH_TXEN hold time after
ETH_TXCLK.
SMII_RXD and SMII_RXSYNC setup time prior to
rising edge of SMII_RXCLK
SMII_RXD and SMII_RXSYNC hold time after the
rising edge of SMII_CLK
eth_crs
®
IXP46X Product Line of Network Processors
T
1
Parameter
Parameter
Intel
®
IXP45X and Intel
Min.
®
Min.
1.5
1.5
1
IXP46X Product Line of Network Processors
T
T
3
2
Max.
Max.
12.5
T
4
Units
Units
ns
ns
ns
ns
A9580-01
1
1
Datasheet
1,
2
Notes
Notes
2
121