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(yè)數(shù)： 14/54頁(yè)
文件大?。?/td> 594K
代理商： PS2000ACQ
PS2000A Datasheet
Doc. Number:
TECINHD001
Version 1.0
3/1/2002
P&S DataCom Corporation
10
7.3
Oscillator Circuit
Pin XTAL1 is the input terminal of the internal reverse amplifier, and pin XTAL2 is the
output terminal of it. We can use this reverse amplifier to configure an oscillator by
connecting an 11.0592MHz Crystal as shown in Figure 7.
Figure 7 PS2000A Oscillator Circuit
If you use the external clock signal, this clock signal (must be 11.0592MHz) can input
from pin XTAL1 of the PS2000A but leave pin XTAL2 floating, as shown in Figure 8.
Figure 8 PS2000A Use the External Clock Signal
7.4
STATE Signal
Pin STATE outputs the signal to indicate the current running state of the PS2000A which
is active-low. Users may use this signal to drive an LED directly as shown in Figure 9.
Figure 9 The Usage of the /STATE signal
Pin STATE will generate the active signal (Low), when the PS2000A is running in the
following processes:
1. After reset, PS2000A is in the initial configuration mode;
2. PS2000A receives valid data from the network server;
3. PS2000A sends data to the network server;
4. PS2000A starts up the Modem to establish the connection process; and
510
PS2000A
XTAL1
30pF
30pF
1
PS2000A
XTAL1
External 11.0592MHz
PS2000A
/STATE
V
CC
LED
êê
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