参数资料
型号: MPC8378ECVRAGDA
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 266 MHz, MICROPROCESSOR, PBGA689
封装: 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件页数: 58/125页
文件大小: 894K
代理商: MPC8378ECVRAGDA
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
38
This figure shows the MII management AC timing diagram.
Figure 20. MII Management Interface Timing Diagram
MDC rise time (20%–80%)
tMDCR
10
ns
MDC fall time (80%–20%)
tMDCF
10
ns
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.
3. Guaranteed by design.
4. tplb_clk is the platform (CSB) clock divided according to the SCCR[TSEC1CM].
Table 38. MII Management AC Timing Specifications (continued)
Parameter
Symbol1
Min
Typical
Max
Unit
Note
MDC
tMDDXKH
tMDC
tMDCH
tMDCR
tMDCF
tMDDVKH
tMDKHDX
MDIO
(Input)
(Output)
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