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| 型號： | MPC8378CVRAGFA |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 333 MHz, MICROPROCESSOR, PBGA689 |
| 封裝： | 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689 |
| 文件頁數(shù)： | 53/125頁 |
| 文件大?。?/td> | 894K |
| 代理商： | MPC8378CVRAGFA |
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MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
33
8.3.4
RGMII and RTBI AC Timing Specifications
This table presents the RGMII and RTBI AC timing specifications.
This figure provides the AC test load for eTSEC.
Figure 14. eTSEC AC Test Load
Table 33. RGMII and RTBI AC Timing Specifications
At recommended operating conditions with LVDD of 2.5 V ± 5%.
Parameter
Symbol1
Min
Typical
Max
Unit
Note
Data to clock output skew (at transmitter)
tSKRGT
–600
0
600
ps
—
Data to clock input skew (at receiver)
tSKRGT
1.0
—
2.8
ns
Clock period
tRGT
7.2
8.0
8.8
ns
Duty cycle for 1000Base-T
tRGTH/tRGT
45
50
55
%
Duty cycle for 10BASE-T and 100BASE-TX
tRGTH/tRGT
40
50
60
%
Rise time (20%–80%)
tRGTR
—
0.75
ns
—
Fall time (20%–80%)
tRGTF
—
0.75
ns
—
EC_GTX_CLK125 reference clock period
tG12
—8.0
—
ns
EC_GTX_CLK125 reference clock duty cycle
measured at 0.5
LV
DD1
tG125H/tG125
47
—
53
%
—
Notes:
1. Note that, in general, the clock reference symbol representation for this section is based on the symbols RGT to represent
RGMII and RTBI timing. Note also that the notation for rise (R) and fall (F) times follows the clock symbol that is being
represented. For symbols representing skews, the subscript is skew (SK) followed by the clock that is being skewed (RGT).
2. This implies that PC board design will require clocks to be routed such that an additional trace delay of greater than 1.5 ns
will be added to the associated clock signal.
3. For 10 and 100 Mbps, tRGT scales to 400 ns ± 40 ns and 40 ns ± 4 ns, respectively.
4. Duty cycle may be stretched/shrunk during speed changes or while transitioning to a received packet's clock domains as
long as the minimum duty cycle is not violated and stretching occurs for no more than three tRGT of the lowest speed
transitioned between
5. This symbol represents the external EC_GTX_CLK125 and does not follow the original signal naming convention.
Output
Z0 = 50
LVDD/2
RL = 50
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8378CVRAGGA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8378CVRAJDA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8378CVRAJF | 功能描述:微處理器 - MPU PBGA W/O ENCR RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8378CVRAJFA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8378CVRAJGA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
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