参数资料
型号: MPC8540PXAPDB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 833 MHz, MICROPROCESSOR, PBGA783
封装: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件页数: 36/104页
文件大小: 2133K
代理商: MPC8540PXAPDB
MPC8540 Integrated Processor Hardware Specifications, Rev. 3.1
Freescale Semiconductor
37
Figure 17 shows the MII management AC timing diagram.
Figure 17. 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 (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 333 MHz, the maximum frequency is
10.4 MHz and the minimum frequency is 1.5 MHz).
3.This parameter is dependent on the system clock speed (that is, for a system clock of 267 MHz, the delay is 60 ns and
for a system clock of 333 MHz, the delay is 48 ns).
4.Guaranteed by design.
Table 33. MII Management AC Timing Specifications (continued)
At recommended operating conditions with OVDD is 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
Notes
MDC
tMDDXKH
tMDC
tMDCH
tMDCR
tMDCF
tMDDVKH
tMDKHDX
MDIO
(Input)
(Output)
tMDKHDV
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