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參數(shù)資料
| 型號(hào)： | PS2000ACQ |
| 英文描述： | A Network Communication Controller Designed to Connect Any MCU Application System To A Gateway(單片網(wǎng)絡(luò)通信控制器,用于控制MCU和網(wǎng)絡(luò)服務(wù)器之間的信息交換) |
| 中文描述： | 通信控制器的網(wǎng)絡(luò)連接任何設(shè)計(jì)單片機(jī)應(yīng)用系統(tǒng)到一個(gè)網(wǎng)關(guān)（單片網(wǎng)絡(luò)通信控制器，用于控制微控制器和網(wǎng)絡(luò)服務(wù)器之間的信息交換） |
| 文件頁數(shù)： | 36/54頁 |
| 文件大?。?/td> | 594K |
| 代理商： | PS2000ACQ |
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PS2000A Datasheet
Doc. Number:
TECINHD001
Version 1.0
3/1/2002
P&S DataCom Corporation
32
After the PS2000A connects to the network server successfully, if the PS2000A has not
received the valid data transmitted by the network server within 1 minute, the PS2000A
will command the Modem to hang-up to finish the communication connection.
Modem Set in Answer Mode
The MCU application system may set the Modem of the PS2000A in answer mode, then
the PS2000A enters into the status waiting for the network server’s Modem dialing.
Once the network server’s Modem dials and calls the PS2000A, the PS2000A should
answer and respond after the first ringing has finished. If the PS2000A has answered
and responded but not connected to the network server successfully within 30 seconds,
then the current Modem connection fails.
After the PS2000A connects to the network server successfully, if the PS2000A hasn’t
received the valid data transmitted by the network server within 1 minute, then the
PS2000A will command the Modem to hang up to finish the communication connection.
Once the PS2000A enters the waiting call status, it can not respond to other requests from
the MCU application system. If the MCU wants to make the PS2000A exit the waiting
call status, it may input a low-level signal at /CS pin as shown in Figure 24.
Figure 24 The signal on CS to exit PS2000A from the waiting call status
10.4 Gateway Discovery Process
The network server can only access the PS2000A after it is registered. The network server
uses DISV to inquire if there are non-registered PS2000A’s connected to the network system.
If this is the case, these new PS2000A’s will be registered automatically.
The format of the command sent from the network server is shown in Table 25. In the data
package of the DISV command the network server sends to the PS2000A, the ID of the
device should be 0, or use the super device ID (0FFH). Otherwise, the PS2000A will not
respond to the command.
20
m
s<t<1s
t
/CS
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