参数资料
型号: MC8640DTVU1000NC
厂商: Freescale Semiconductor
文件页数: 68/130页
文件大小: 0K
描述: MPU DUAL E600 994-FCCBGA
标准包装: 1
系列: MPC86xx
处理器类型: 32-位 MPC86xx PowerPC
速度: 1.0GHz
电压: 0.95V
安装类型: 表面贴装
封装/外壳: 994-BCBGA,FCCBGA
供应商设备封装: 994-FCCBGA(33x33)
包装: 托盘
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
42
Freescale Semiconductor
Ethernet Management Interface Electrical Characteristics
Figure 23 provides the AC test load for eTSEC.
Figure 23. eTSEC AC Test Load
NOTE
Output will see a 50
Ω load since what it sees is the transmission line.
Figure 24 shows the MII management AC timing diagram.
Figure 24. MII Management Interface Timing Diagram
MDC fall time
tMDHF
10
ns
4
Notes:
1. The symbols used for timing specifications herein follow the pattern of t(first two letters of functional block)(signal)(state) (reference)(state)
for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tMDKHDX symbolizes
management data timing (MD) for the time tMDC from clock reference (K) high (H) until data outputs (D) are invalid (X) or data
hold time. Also, tMDDVKH symbolizes management data timing (MD) with respect to the time data input signals (D) reach the
valid state (V) relative to the tMDC clock reference (K) going to the high (H) state or setup time. For rise and fall times, the
latter convention is used with the appropriate letter: R (rise) or F (fall).
2. This parameter is dependent on the system clock speed. (The maximum frequency is the maximum platform frequency
divided by 64.)
3. This parameter is dependent on the system clock speed. (That is, for a system clock of 267 MHz, the maximum frequency is
8.3 MHz and the minimum frequency is 1.2 MHz; for a system clock of 375 MHz, the maximum frequency is 11.7 MHz and
the minimum frequency is 1.7 MHz.)
4. Guaranteed by design.
5. tMPXCLK is the platform (MPX) clock
Table 39. MII Management AC Timing Specifications (continued)
At recommended operating conditions with OVDD is 3.3 V ± 5%.
Parameter
Symbol 1
Min
Typ
Max
Unit
Notes
Output
Z0 = 50 Ω
OVDD/2
RL = 50 Ω
MDC
tMDDXKH
tMDC
tMDCH
tMDCR
tMDCF
tMDDVKH
tMDKHDX
MDIO
(Input)
(Output)
相关PDF资料
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MC8640DTVU1000HC MPU DUAL E600 1023-FCCBGA
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