參數(shù)資料
型號: PC8641MSH1333JB
廠商: E2V TECHNOLOGIES PLC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, 2.72 MM HEIGHT, 1 MM PITCH, ROHS COMPLIANT, CERAMIC, FC-BGA-1023
文件頁數(shù): 30/111頁
文件大?。?/td> 1660K
代理商: PC8641MSH1333JB
25
0893C–HIREL–01/10
e2v semiconductors SAS 2010
PC8641 and PC8641D [Preliminary]
8.
DUART
This section describes the DC and AC electrical specifications for the DUART interface of the PC8641.
8.1
DUART DC Electrical Characteristics
Table 8-1 provides the DC electrical characteristics for the DUART interface.
Note:
1. Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 3-1 on page 6
8.2
DUART AC Electrical Specifications
Table 8-2 provides the AC timing parameters for the DUART interface.
Notes:
1. Guaranteed by design.
2. MPX clock refers to the platform clock.
3. Actual attainable baud rate will be limited by the latency of interrupt processing.
4. The middle of a start bit is detected as the 8th sampled 0 after the 1-to-0 transition of the start bit. Sub-
sequent bit values are sampled each 16th sample.
Table 8-1.
DUART DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
High-level input voltage
V
IH
2
OV
DD + 0.3
V
Low-level input voltage
VIL
-0.3
0.8
V
Input current
(
(1) = 0V or V
IN = VDD)
I
IN
±5
A
High-level output voltage
(OVDD = mn, IOH = -100 A)
V
OH
OV
DD– 0.2
V
Low-level output voltage
(OVDD = min, IOL = 100 A)
V
OL
0.2
V
Table 8-2.
DUART AC Timing specifications
Parameter
Value
Unit
Notes
Minimum baud rate
MPX clock/1,048,576
baud
Maximum baud rate
MPX clock/16
baud
Oversample rate
16
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