參數(shù)資料
型號(hào): MPC8314EVRAGDA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, PBGA620
封裝: 29 X 29 MM, LEAD FREE, PLASTIC, TEPBGA-620
文件頁(yè)數(shù): 22/106頁(yè)
文件大?。?/td> 1253K
代理商: MPC8314EVRAGDA
MPC8314E PowerQUICC II Pro Processor Hardware Specifications, Rev. 0
22
Freescale Semiconductor
DUART
Figure 8 provides the AC test load for the DDR bus.
Figure 8. DDR AC Test Load
8DUART
This section describes the DC and AC electrical specifications for the DUART interface.
8.1
DUART DC Electrical Characteristics
Table 21 lists the DC electrical characteristics for the DUART interface.
8.2
DUART AC Electrical Specifications
Table 22 lists the AC timing parameters for the DUART interface.
9
Ethernet: Three-Speed Ethernet, MII Management
This section provides the AC and DC electrical characteristics for three-speed, 10/100/1000, and MII
management.
Table 21. DUART DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
High-level input voltage
VIH
2.1
NVDD + 0.3
V
Low-level input voltage NVDD
VIL
–0.3
0.8
V
High-level output voltage, IOH = –100 μAVOH
NVDD – 0.2
V
Low-level output voltage, IOL = 100 μAVOL
—0.2
V
Input current (0 V
≤VIN ≤ NVDD)
IIN
—± 5
μA
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 is limited by the latency of interrupt processing.
2. The middle of a start bit is detected as the eighth sampled 0 after the 1-to-0 transition of the
start bit. Subsequent bit values are sampled each sixteenth sample.
Output
Z0 = 50 Ω
GVDD/2
RL = 50 Ω
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