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)： 21/54頁(yè)
文件大小： 594K
代理商： PS2000ACQ
PS2000A Datasheet
Doc. Number:
TECINHD001
Version 1.0
3/1/2002
P&S DataCom Corporation
17
9.2
Command
The command bytes between the PS2000A and the MCU include two parts: bits D7~D5
are the command state and bits D4~D0 define the commands as shown in Table 13.
Table 13
Command State
Command
D7
D6
D5
D4
D3
D2
D1
D0
W_INIT (0Eh)
W_CNTL (0Fh)
W_READ (00h)
W_RDEV (06h)
More
Reserved
Online
W_WRIT (01h)
D7 (More) Data state bit. When the PS2000A accesses the MCU (W_READ and
W_WRIT), this bit is valid.
When D7=1, some data hasn’t been sent.
When D7=0, the data has been sent already.
When the PS2000A reads some data of an object from the MCU application system, this
bit is set by the MCU to indicate that some data hasn’t been sent and the PS2000A should
issue the read command to read the remaining data continuously. This bit is mainly used
for the MCU application system to control some operation or to start the function call. If
the data of some object hasn’t been received completely, then the user may not start some
other operation or function call.
D6 (Reserved) Future use bit.
D5 (Online) Connection state bit. It is used for indicating the connection between the
PS2000A and the server. This bit is valid only when the PS2000A sends a command to
the MCU and it is set by the PS2000A.
D5=0, PS2000A and network server are in a connecting state.
D5=1, PS2000A and network server are in state of disconnecting.
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