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参数资料
型号： EWIXP455ABT
厂商： INTEL CORP
元件分类： 微控制器/微处理器
英文描述： 266 MHz, RISC PROCESSOR, PBGA544
封装： LEAD FREE, PLASTIC, BGA-544
文件页数： 143/163页
文件大小： 1123K
代理商： EWIXP455ABT
Package Information
May 2005
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
80
Document Number: 306261-002
CTS0_N
H
VI/H
I
UART CLEAR-TO-SEND input to UART Pins.
When logic 0, this pin indicates that the modem or data set connected to the UART interface of the
processor is ready to exchange data. The signal is a modem status input whose condition can be
tested by the processor.
Should be pulled high through a 10-K
resistor when not being utilized in the system.
RTS0_N
Z
V0
VO
O
UART REQUEST-TO-SEND output:
When logic 0, this informs the modem or the data set connected to the UART interface of the
processor that the UART is ready to exchange data. A reset sets the request to send signal to
logic 1.
LOOP-mode operation holds this signal in its inactive state (logic 1)
RXDATA1
Z
VI
I
UART serial data input.
Should be pulled high through a 10-K
resistor when not being utilized in the system.
TXDATA1
Z
VO
O
UART serial data output. The TXD signal is set to the MARKING (logic 1) state upon a Reset
operation.
CTS1_N
H
VI/H
I
UART CLEAR-TO-SEND input to UART pins.
When logic 0, this pin indicates that the modem or data set connected to the UART interface of the
processor is ready to exchange data. The signal is a modem status input whose condition can be
tested by the processor.
Should be pulled high through a 10-K
resistor when not being utilized in the system.
RTS1_N
Z
V0
VO
O
UART REQUEST-TO-SEND output:
When logic 0, this informs the modem or the data set connected to the UART interface of the
processor that the UART is ready to exchange data. A reset sets the request to send signal to
logic 1.
LOOP-mode operation holds this signal in its inactive state (logic 1).
Table 18.
UART Interfaces (Sheet 2 of 2)
Name
Power
on
Reset
Normal
After
Reset
Until
Software
Enables
Normal
After
Software
Enables
Type
Description
NOTE:
This table discusses all features supported on the Intel IXP45X and Intel IXP46X Product Line of Network Processors. For details on feature support listed by
processor, see Table 1 on page 14.
For a legend of the Type codes, see Table 10 on page 46.
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