參數(shù)資料
型號(hào): PSM2000ACD
英文描述: PSM2000ACD Webchip Module(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ,RS-232驅(qū)動(dòng)器,RS*485驅(qū)動(dòng)器及嵌入式Modem構(gòu)成))
中文描述: PSM2000ACD Webchip模塊(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ和RS - 232驅(qū)動(dòng)器,恏巴* 485驅(qū)動(dòng)器及嵌入式調(diào)制解調(diào)器構(gòu)成))
文件頁(yè)數(shù): 10/17頁(yè)
文件大?。?/td> 404K
代理商: PSM2000ACD
PSM2000ACD WebChip Module Datasheet
Doc. Number:
INHD002
Version 1.0
8/20/2001
7 Application Notes
7.1
PSM2000ACD and User MCU Interface Method
As shown in Figure 3, the PSM2000ACD uses a standard SPI to connect to the user
MCU, and the communication protocol conforms to the MCUnet
TM
protocol. If the
user’s MCU doesn’t have an SPI interface available, a common I/O port can be used
to make up an SPI port. For detailed information on the interface methods between
the PSM2000ACD and the user MCU, please refer to the PSM20XX Family
WebChip
TM
Module User’s Guide, the application note on Interfacing the PSM20XX
Family to 8051 Type Microcontrollers, and the MCUnet
TM
Protocol.
User MCU System
/CS
CLK
DO
DI
/INT
PSM2000ACD
8
6
5
7
4
Figure 3 PSM2000ACD Connects to the MCU Through a Standard SPI Interface
7.2
PSM2000ACD and User MCU Interface Timing
The communication process between the PSM2000ACD and the MCU includes two
steps:
1. PSM2000ACD sends data to the MCU
2. PSM2000ACD receives data from the MCU
The process flow is shown in the Figure 4.
PSM2000ACD sends data to MCU
PSM2000ACD receives data from MCU
/INT
P&S DataCom Corporation
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10
of
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