參數資料
型號: PSM2001ACD
英文描述: PSM2001ACD Webchip Module(網絡通信控制器模塊(由PS2000ACQ,RS-232驅動器,RS*485驅動器構成))
中文描述: PSM2001ACD Webchip模塊(網絡通信控制器模塊(由PS2000ACQ和RS - 232驅動器,恏巴* 485驅動器構成))
文件頁數: 10/17頁
文件大?。?/td> 385K
代理商: PSM2001ACD
PSM2001ACD WebChip Module Datasheet
Doc. Number:
INHD003
Version 1.0
8/20/2001
User MCU System
/CS
CLK
DO
DI
/INT
PSM2001ACD
8
6
5
7
4
Figure 3 PSM2001ACD Connects to MCU Through a Standard SPI Interface
7.2
PSM2001ACD and User MCU Interface Timing
The communication process between the PSM2001ACD and the MCU includes two
steps:
1. PSM2001ACD sends data to the MCU
2. PSM2001ACD receives data from the MCU
The process flow is shown in Figure 4.
PSM2001ACD sends data to MCU
PSM2001ACD receives data from MCU
/INT
Figure 4 One Communication Process between PSM2001ACD and MCU
The communication timing between the PSM2001ACD and the MCU conforms to
the following rules:
1. First, the PSM2001ACD sends an /INT signal to request a data exchange with
the MCU; The following communication transaction will be controlled by the
MCU; that is, the MCU sends chip select signal/CS and clock signal CLK;
2. Data will be transferred in byte form. The MSB is transferred first until the LSB
is received.
P&S DataCom Corporation
Page
10
of
17
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