參數(shù)資料
型號: CD1284
廠商: Intel Corp.
英文描述: IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
中文描述: 符合IEEE 1284兼容并行接口控制器兩個高速異步串行端口
文件頁數(shù): 72/176頁
文件大?。?/td> 2255K
代理商: CD1284
CD1284
IEEE 1284-Compatible Parallel Interface Controller
72
Datasheet
5.9
Baud Rate Generation
The CD1284 provides a separate baud rate generator both directions of each channel. Each receive
and transmit baud rate generator can be driven from one of five available clock sources. The source
being used is selected by the value in the R/TCOR. The selected clock is divided by the value in the
R/TBPR to yield the desired bit rate.
Note:
R/T is used as a register abbreviation indicating Receive / Transmit followed by the register
acronym.
The five clock sources are:
Figure 10. CD1284 Transmit Character Processing (Continued)
D
E
CHAR
TRANSLATION
ENABLED
PERFORM CR, NL
PROCESSING AS
SPECIFIED
Y
N
SEND CHAR
EXIT
Clk0
System clock
÷
8, R/TCOR
=
0
Clk1
System clock
÷
32, R/TCOR
=
1
Clk2
System clock
÷
128, R/TCOR
=
2
Clk3
System clock
÷
512, R/TCOR
=
3
Clk4
System clock
÷
2048,
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