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)： 41/54頁
文件大?。?/td> 594K
代理商： PS2000ACQ
PS2000A Datasheet
Doc. Number:
TECINHD001
Version 1.0
3/1/2002
P&S DataCom Corporation
37
The super password of the PS2000A is a write-only variable. The network server or the
DPTGT cannot read the super password of the PS2000A.
The PS2000A can connect to the network server or the DPTGT to download the Device
Property Table without connecting to the MCU application system. But at this case, the
PS2000A can communicate with the network server or the DPTGT in RS-232 mode, the
baud rate is fixed as 9600bps. The length of receiving and transmitting buffer section is
fixed as 56 bytes. The PS2000A needs the minimal physical connection as shown in
Figure 27.
LED
Figure 27 The simplified diagram of minimal connection for PS2000A downloading device
property table
In the Figure 27, the output signal STATE drives the LED to indicate the state of
downloading the device property table and determine whether the device property table
is loaded in the PS2000A successfully.
The PS2000A may download the device property table after connecting to the MCU
application system. The MCU may select the PS2000A communicate with the network
server or the DPTGT in another mode and at another speed. But in the case, the size of
receiving and transmitting buffer section of the MCU application system cannot affect
the buffer section of the PS2000A which is fixed as 56 bytes.
The network server or the DPTGT uses two methods to load the device property table in
the PS2000A:
1. local connection via RS-232 or RS-485
2. remote connection via Modem
PS2000A
DTE
DB9 Socket of
Server or DPTGT
/STATE
PEN
XTAL1
XTAL2
RST
RXD
TXD
ROUT
RIN
TIN
TOUT
RS-232
1
μ
F
30pF
11.0592MHz
30pF
V
CC
V
CC
510
V
CC
1
2
6
3
7
4
8
5
9
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