參數(shù)資料
型號(hào): FLEX8000
廠商: Altera Corporation
英文描述: PROGRAMMABLE LOGIC DEVICES FAMILY
中文描述: 系列可編程邏輯元件
文件頁(yè)數(shù): 23/61頁(yè)
文件大?。?/td> 979K
代理商: FLEX8000
Altera Corporation
23
FLEX 8000 Programmable Logic Device Family Data Sheet
Table 5
lists the source of the peripheral control signal for each FLEX 8000
device by row.
Output
Configuration
This section discusses slew-rate control and MultiVolt I/O interface
operation for FLEX 8000 devices.
Slew-Rate Control
The output buffer in each IOE has an adjustable output slew rate that can
be configured for low-noise or high-speed performance. A slow slew rate
reduces system noise by slowing signal transitions, adding a maximum
delay of 3.5 ns. The slow slew-rate setting affects only the falling edge of
a signal. The fast slew rate should be used for speed-critical outputs in
systems that are adequately protected against noise. Designers can specify
the slew rate on a pin-by-pin basis during design entry or assign a default
slew rate to all pins on a global basis.
f
For more information on high-speed system design, go to
Application
Note 75 (High-Speed Board Designs)
in this data book.
Table 5. Row Sources of FLEX 8000 Peripheral Control Signals
Peripheral
Control Signal
EPF8282A
EPF8282AV
EPF8452A
EPF8636A
EPF8820A
EPF81188A
EPF81500A
CLK0
Row A
Row A
Row A
Row A
Row E
Row E
CLK1/OE1
Row B
Row B
Row C
Row C
Row B
Row B
CLR0
Row A
Row A
Row B
Row B
Row F
Row F
CLR1/OE0
Row B
Row B
Row C
Row D
Row C
Row C
OE2
Row A
Row A
Row A
Row A
Row D
Row A
OE3
Row B
Row B
Row B
Row B
Row A
Row A
OE4
Row B
OE5
Row C
OE6
Row D
OE7
Row D
OE8
Row E
OE9
Row F
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