参数资料
型号: EWIXP455ABT
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 266 MHz, RISC PROCESSOR, PBGA544
封装: LEAD FREE, PLASTIC, BGA-544
文件页数: 39/163页
文件大小: 1123K
代理商: EWIXP455ABT
Electrical Specifications
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
May 2005
Document Number: 306261-002
133
5.6.2.4
MII/SMII
Table 55.
UTOPIA Level 2 Output Timings Values
Symbol
Parameter
Min.
Max.
Units
Notes
Tclk2out
Rising edge of clock to signal output. Outputs
included in this timing are UTP_OP_SOC,
UTP_OP_FCO, UTP_IP_FCO,
UTP_OP_DATA[7:0], UTP_IP_ADDR[4:0] and
UTP_OP_ADDR[4:0].
17
ns
Tholdout
Signal output hold time after the rising edge of
the clock. Outputs included in this timing are
UTP_OP_SOC, UTP_OP_FCO, UTP_IP_FCO,
UTP_OP_DATA[7:0], UTP_IP_ADDR[4:0] and
UTP_OP_ADDR[4:0].
1ns
NOTES:
1. Timing was designed for a system load between 5pF and 25pF
Figure 21.
SMII Output Timings
Table 56.
SMII Output Timings Values
Symbol
Parameter
Min.
Max.
Units
Notes
T1
Clock to output delay for SMII_TXD[4:0] and
SMII_SYNC with respect to rising edge of
SMII_CLK
1.5
5
ns
T2
SMII_TXD[4:0] and SMII_SYNC hold time after
SMII_CLK.
1.5
ns
NOTES:
1. Timing was designed for a system load between 5pF and 15pF
SMII_CLK
SMII_OUTPUTS
T
1
T
2
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