參數(shù)資料
型號(hào): PSM2001ACD
英文描述: PSM2001ACD 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)器構(gòu)成))
中文描述: PSM2001ACD 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)器構(gòu)成))
文件頁數(shù): 11/17頁
文件大小: 385K
代理商: PSM2001ACD
PSM2001ACD WebChip Module Datasheet
Doc. Number:
INHD003
Version 1.0
8/20/2001
3. Data is sampled on the falling edge of CLK and shifted on the rising edge.
4. When the PSM2001ACD doesn’t exchange data with the MCU, the MCU must
set /CS and CLK high.
The timing of the PSM2001ACD sending data to the MCU is shown in Figure 5.
The first byte is the length n of the data packets
The first byte data
The second byte data
The third byte data
PSM2001ACD sends /INT
/CS
CLK
DO
>10
μ
s
/INT recover
<4
μ
s
The nth data byte
The (n+1)th data byte
/INT hold high level
/CS
CLK
DO
PSM2001ACD finish sending data
Figure 5 Timing of the PSM2001ACD Sending Data to the MCU
The enlarged CLK and DO timing is shown in Figure 6.
CLK
DO
D7
D6
D5
D4
>4
μ
s
>4
μ
s
Figure 6 Enlarged CLK and DO Timing
The timing of PSM2001ACD receiving data from the MCU is shown in Figure 7.
P&S DataCom Corporation
Page
11
of
17
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