参数资料
型号: MPC8343CVRADDB
厂商: Freescale Semiconductor
文件页数: 15/80页
文件大小: 0K
描述: IC MPU PWRQUICC II 620-PBGA
产品培训模块: MPC834x PowerQUICC II Processors
标准包装: 36
系列: MPC83xx
处理器类型: 32-位 MPC83xx PowerQUICC II Pro
速度: 266MHz
电压: 1.2V
安装类型: 表面贴装
封装/外壳: 620-BBGA 裸露焊盘
供应商设备封装: 620-PBGA(29x29)
包装: 托盘
MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
22
Freescale Semiconductor
Ethernet: Three-Speed Ethernet, MII Management
7.2
DUART AC Electrical Specifications
Table 22 provides the AC timing parameters for the DUART interface of the MPC8343EA.
8
Ethernet: Three-Speed Ethernet, MII Management
This section provides the AC and DC electrical characteristics for three-speeds (10/100/1000 Mbps) and
MII management.
8.1
Three-Speed Ethernet Controller (TSEC)—MII/RGMII/RTBI
Electrical Characteristics
The electrical characteristics specified here apply to media independent interface (MII), reduced gigabit
media independent interface (RGMII), and reduced ten-bit interface (RTBI) signals except management
data input/output (MDIO) and management data clock (MDC). The MII interface is defined for 3.3 V, and
the RGMII and RTBI interfaces are defined for 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 8.3,
High-level output voltage, IOH = –100 μAVOH
OVDD – 0.2
V
Low-level output voltage, IOL = 100 μAVOL
—0.2
V
Table 22. 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 will be 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 21. DUART DC Electrical Characteristics (continued)
Parameter
Symbol
Min
Max
Unit
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