参数资料
型号: 4450HA/3-K
厂商: EXAR CORP
元件分类: 微控制器/微处理器
英文描述: MICROPROCESSOR, PBGA324
封装: HSBGA-324
文件页数: 72/92页
文件大小: 780K
代理商: 4450HA/3-K
4450 – Data Sheet, DS-0131-06
Page 74
Hifn Confidential
Figure 8-4. GMII transmit & receive timing
8.5 TBI Timing (Host Interface)
The 4450 supports the 802.3-2002 standard specifications. For TBI MAC and PHY modes,
the 4450 can operate with 0.05ns less than the IEEE 802.3 specification requirements. All
other timing numbers match the 802.3 specification.
Table 8-6. TBI Timing
Mode
Rise Time
Fall Time
Input Signals
Output Signals
(max)
Setup
Hold
Setup
Hold
MAC
1.00
2.45 ns
1.45 ns
2.00 ns
1.00 ns
PHY
1.00
1.95 ns
0.95 ns
2.50 ns
1.50 ns
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