參數資料
型號: MC8641DHX1500GB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
文件頁數: 80/140頁
文件大小: 1484K
代理商: MC8641DHX1500GB
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 0
44
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/Condition
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)
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MC8641DHX1500KC 功能描述:微處理器 - MPU G8 REV 2.1 1.1V 105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324