参数资料
型号: MPC8572ECLPXATLD
厂商: Freescale Semiconductor
文件页数: 81/138页
文件大小: 0K
描述: MPU POWERQUICC III 1023FCPBGA
标准包装: 1
系列: MPC85xx
处理器类型: 32-位 MPC85xx PowerQUICC III
速度: 1.2GHz
电压: 1.1V
安装类型: 表面贴装
封装/外壳: 1023-BBGA,FCBGA
供应商设备封装: 1023-FCPBGA(33x33)
包装: 托盘
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
47
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
8.3.4
SGMII AC Timing Specifications
This section describes the SGMII transmit and receive AC timing specifications. Transmitter and receiver
characteristics are measured at the transmitter outputs (SD2_TX[n] and SD2_TX[n]) or at the receiver
inputs (SD2_RX[n] and SD2_RX[n]) as depicted in Figure 25, respectively.
8.3.4.1
SGMII Transmit AC Timing Specifications
Table 40 provides the SGMII transmit AC timing targets. A source synchronous clock is not provided.
8.3.4.2
SGMII Receive AC Timing Specifications
Table 41 provides the SGMII receive AC timing specifications. Source synchronous clocking is not
supported. Clock is recovered from the data. Figure 24 shows the SGMII receiver input compliance mask
eye diagram.
Table 40. SGMII Transmit AC Timing Specifications
At recommended operating conditions with XVDD_SRDS2 = 1.1V ± 5%.
Parameter
Symbol
Min
Typ
Max
Unit
Notes
Deterministic Jitter
JD
0.17
UI p-p
Total Jitter
JT
0.35
UI p-p
Unit Interval
UI
799.92
800
800.08
ps
1
VOD fall time (80%-20%)
tfall
50
120
ps
VOD rise time (20%-80%)
trise
50
120
ps
Notes:
1. Each UI is 800 ps ± 100 ppm.
Table 41. SGMII Receive AC Timing Specifications
At recommended operating conditions with XVDD_SRDS2 = 1.1V ± 5%.
Parameter
Symbol
Min
Typ
Max
Unit
Notes
Deterministic Jitter Tolerance
JD
0.37
UI p-p
1
Combined Deterministic and Random Jitter Tolerance
JDR
0.55
UI p-p
1
Sinusoidal Jitter Tolerance
JSIN
0.1
UI p-p
1
Total Jitter Tolerance
JT
0.65
UI p-p
1
Bit Error Ratio
BER
10-12
——
Unit Interval
UI
799.92
800
800.08
ps
2
AC Coupling Capacitor
CTX
5
200
nF
3
Notes:
1. Measured at receiver.
2. Each UI is 800 ps ± 100 ppm.
3. The external AC coupling capacitor is required. It is recommended to be placed near the device transmitter outputs.
4. See
RapidIO 1x/4x LP Serial Physical Layer Specification for interpretation of jitter specifications.
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