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参数资料
型号： MPC8313VRAGDA
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA516
封装： 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, LEAD FREE, TEPBGAII-516
文件页数： 15/100页
文件大小： 1247K
代理商： MPC8313VRAGDA
MPC8313E PowerQUICC II Pro Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
21
Ethernet: Three-Speed Ethernet, MII Management
7.2
DUART AC Electrical Specifications
Table 23 provides the AC timing parameters for the DUART interface.
8
Ethernet: Three-Speed Ethernet, MII Management
This section provides the AC and DC electrical characteristics for three-speed, 10/100/1000, and MII
management.
8.1
Enhanced Three-Speed Ethernet Controller (eTSEC)
(10/100/1000 Mbps)—MII/RMII/RGMII/SGMII/RTBI Electrical
Characteristics
The electrical characteristics specified here apply to all the media independent interface (MII), reduced
gigabit media independent interface (RGMII), serial gigabit media independent interface (SGMII), and
reduced ten-bit interface (RTBI) signals except management data input/output (MDIO) and management
data clock (MDC). The RGMII and RTBI interfaces are defined for 2.5 V, while the MII interface can be
operated at 3.3 V. The RMII and SGMII interfaces can be operated at either 3.3 or 2.5 V. The RGMII and
RTBI interfaces follow the Hewlett-Packard reduced pin-count interface for Gigabit Ethernet Physical
Layer Device Specification Version 1.2a (9/22/2000). The electrical characteristics for MDIO and MDC
are specified in Section 8.5, “Ethernet Management Interface Electrical Characteristics.”
8.1.1
TSEC DC Electrical Characteristics
All RGMII, RMII, and RTBI drivers and receivers comply with the DC parametric attributes specified in
Table 24 and Table 25. The RGMII and RTBI signals are based on a 2.5-V CMOS interface voltage as
defined by JEDEC EIA/JESD8-5.
Table 23. DUART AC Timing Specifications
Parameter
Value
Unit
Notes
Minimum baud rate
256
baud
—
Maximum baud rate
> 1,000,000
baud
1
Oversample rate
16
—
2
Notes:
1. Actual attainable baud rate is limited by the latency of interrupt processing.
2. The middle of a start bit is detected as the 8th sampled 0 after the 1-to-0 transition of the start bit. Subsequent bit values are
sampled each 16th sample.
Table 24. MII DC Electrical Characteristics
Parameter
Symbol
Conditions
Min
Max
Unit
Supply voltage 3.3 V
LVDDA/LVDDB
—
2.97
3.63
V
Output high voltage
VOH
IOH = –4.0 mA
LVDDA or LVDDB = Min
2.40
LVDDA + 0.3
or
LVDDB + 0.3
V
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