參數(shù)資料
型號: MPC8540CPXAQFB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 667 MHz, MICROPROCESSOR, PBGA783
封裝: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件頁數(shù): 62/104頁
文件大?。?/td> 1353K
代理商: MPC8540CPXAQFB
MPC8540 Integrated Processor Hardware Specifications, Rev. 4
60
Freescale Semiconductor
RapidIO
The compliance of driver output signals TD[0:15] and TFRAME with their minimum data valid window
(DV) specification shall be determined by generating an eye pattern for each of the data signals and
comparing the eye pattern of each data signal with the RapidIO transmit mask shown in Figure 37. The
value of X2 used to construct the mask shall be (1 – DVmin)/2. A signal is compliant with the data valid
window specification if the transmit mask can be positioned on the signal’s eye pattern such that the eye
pattern falls entirely within the unshaded portion of the mask.
Figure 37. RapidIO Transmit Mask
Table 49. RapidIO Driver AC Timing Specifications—1 Gbps Data Rate
Characteristic
Symbol
Range
Unit
Notes
Min
Max
Differential output high voltage
VOHD
200
540
mV
1
Differential output low voltage
VOLD
–540
–200
mV
1
Duty cycle
DC
48
52
%
2, 6
VOD rise time, 20%–80% of peak to peak
differential signal swing
tFALL
100
ps
3, 6
VOD fall time, 20%–80% of peak to peak
differential signal swing
tRISE
100
ps
6
Data valid
DV
575
ps
6
Skew of any two data outputs
tDPAIR
100
ps
4, 6
Skew of single data outputs to associated clock
tSKEW,PAIR
–100
100
ps
5, 6
Notes:
1.See Figure 37.
2.Requires ±100 ppm long term frequency stability.
3.Measured at VOD = 0 V.
4.Measured using the RapidIO transmit mask shown in Figure 37.
5.See Figure 42.
6.Guaranteed by design.
X2
VOHDmax
0
VOHDmin
VOLDmax
VOLDmin
1–X2
DV
V
OD
(m
V
)
Time (UI)
01
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