參數(shù)資料
型號(hào)： MPC8349ECVVALD
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, PBGA672
封裝： 35 X 35 MM, 1.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, TBGA-672
文件頁(yè)數(shù)： 13/88頁(yè)
文件大?。?/td> 1014K
代理商： MPC8349ECVVALD
MPC8349E PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 10
20
Freescale Semiconductor
DUART
7DUART
This section describes the DC and AC electrical specifications for the DUART interface of the
MPC8349E.
7.1
DUART DC Electrical Characteristics
Table 17 provides the DC electrical characteristics for the DUART interface of the MPC8349E.
7.2
DUART AC Electrical Specifications
Table 18 provides the AC timing parameters for the DUART interface of the MPC8349E.
Table 17. DUART DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
High-level input voltage
VIH
2OVDD + 0.3
V
Low-level input voltage
VIL
–0.3
0.8
V
Input current (0.8 V
≤ VIN ≤ 2 V)
IIN
—±5
μA
High-level output voltage, IOH = –100 μAVOH
OVDD – 0.2
—
V
Low-level output voltage, IOL = 100 μAVOL
—0.2
V
Table 18. 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.
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