参数资料
型号: MPC8569VTAQLJB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: RISC PROCESSOR, PBGA783
封装: 29 X 29 MM, 1 MM PITCH, PLASTIC, BGA-783
文件页数: 76/126页
文件大小: 2847K
代理商: MPC8569VTAQLJB
DUART
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
Freescale Semiconductor
53
The following figure provides the AC test load for the DDR2 and DDR3 controller bus.
Figure 11. DDR2 and DDR3 Controller Bus AC Test Load
2.5
DUART
This section describes the DC and AC electrical specifications for the DUART interface of the MPC8569E.
2.5.1
DUART DC Electrical Characteristics
The following table provides the DC electrical characteristics for the DUART interface.
2.5.2
DUART AC Electrical Specifications
The following table provides the AC timing parameters for the DUART interface.
Table 21. DUART DC Electrical Characteristics
For recommended operating conditions, see Table 3
Parameter
Symbol
Min
Max
Unit
Notes
Input high voltage
VIH
2—
V
1
Input low voltage
VIL
—0.8
V
1
Input current (OVIN = 0 V or OVIN = OVDD)IIN
—±40
μA2
Output high voltage (OVDD = mn, IOH = –2 mA)
VOH
2.4
V
Output low voltage (OVDD = min, IOL = 2 mA)
VOL
—0.4
V
Note:
1. The min VILand max VIH values are based on the min and max OVIN respective values found in Table 3.
2. The symbol OVIN represents the input voltage of the supply. It is referenced in Table 3.
Table 22. DUART AC Timing Specifications
For recommended operating conditions, see Table 3
Parameter
Value
Unit
Notes
Minimum baud rate
fCCB/1,048,576
baud
1
Maximum baud rate
fCCB/16
baud
1, 2
Oversample rate
16
3
Notes:
1. fCCB refers to the internal platform clock.
2. The actual attainable baud rate is limited by the latency of interrupt processing.
3. 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.
Output
Z0 = 50 Ω
GVDD/2
RL = 50 Ω
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