參數(shù)資料
型號: CO561AD-S
英文描述: Ichip Internet Controller(Internet網(wǎng)絡(luò)控制器)
中文描述: Ichip互聯(lián)網(wǎng)控制器(互聯(lián)網(wǎng)網(wǎng)絡(luò)控制器)
文件頁數(shù): 20/39頁
文件大?。?/td> 1576K
代理商: CO561AD-S
Pin Descriptions
iChip Plus CO561AD-D Datasheet 5-5
5.2.2 Host Interface Signals
TXDH
Transmit Data Host (output, asynchronous)
This pin supplies asynchronous serial transmit data to the system from the serial port.
RXDH
Receive Data Host (input, asynchronous)
This pin supplies asynchronous serial receive data from the system to the asynchronous
serial port.
~CTSH
Clear-to-Send Host (input, asynchronous)
This pin provides the Clear-to-send signal for the asynchronous host serial port when the
hardware flow control is enabled for the port. The ~CTSH signal gates the transmission
of data from the associated serial port transmit register. When ~CTSH is asserted, the
transmitter begins transmission of a frame of data, if any is available. If ~CTSH is de-
asserted, the transmitter holds the data in the serial port transmit register. The value of
~CTSH is checked only at the beginning of the transmission of the frame.
~RTSH
Ready-to-Send Host (output, asynchronous)
This pin provides the Ready-to-send signal for the asynchronous serial port when the
hardware flow control is enabled for the port. The ~RTSH signal is asserted when the
associated serial port transmit register contains data which has not yet been transmitted.
~DSRH
Data Set Ready Host (input, synchronous)
When hardware flow control is enabled, this pin acts as Data Set Ready Input.
~DTRH/~DMSEL
After reset, this pin’s functionality is ~DMSEL . During normal operation this pin acts as
~DTRH.
~DMSEL
DUAL Mode Select (input, asynchronous ) (For LAN application only )
When this pin is held Low during power up for at least 1 second, and no longer than 5
seconds, iChip Plus will enter auto baud rate mode.
When this pin is held Low during power up for more than 5 seconds, iChip Plus will
automatically enter firmware update mode.
Data Terminal Ready Host (output, synchronous)
During normal operation, when flow control is enabled, this pin operates as Data
Terminal Ready Output.
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