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参数资料
| 型号： | MSM6636RS |
| 厂商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 1 CHANNEL(S), 41.6K bps, LOCAL AREA NETWORK CONTROLLER, PDIP18 |
| 封装： | 0.300 INCH, 2.54 MM PITCH, PLASTIC, DIP-18 |
| 文件页数： | 32/73页 |
| 文件大小： | 646K |
| 代理商： | MSM6636RS |
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MSM6636/6636B User’s Manual
CPU Interfaces
4 – 10
[WRITE PROCEDURE 2]
Once address values have been set, they will be automatically incremented after each data write.
It is therefore quicker to write to the registers consecutively.
1.
Apply a “L” level to the
CS pin to enable parallel interface.
2.
Apply a “H” level to the ALE pin.
3.
Set address values to the AD0 to AD7 pins.
4.
Apply a “L” level to the ALE pin. (Set up the addresses at the fall of ALE.)
5.
Apply a “L” level to the
WR pin.
6.
Input data though the AD0 to AD7 pins.
7.
Apply a “H” level to the
WR pin to write data. (Data writing ends at the rise of WR.)
8.
To write data to the areas with consecutive addresses, repeat steps 5 to 7.
9.
Apply a “H” level to the
CS pin to terminate the use of parallel interface.
CS
AD0-7
Address
Data
ALE
WR
Repeat
Figure 4.3 Write Timing
[READ PROCEDURE 2]
Once address values have been set, they will be automatically incremented after each data write.
It is therefore quicker to write to the registers consecutively.
1.
Apply a “L” level to the
CS pin to enable parallel interface.
2.
Apply a “H” level to the ALE pin.
3.
Set address values to the AD0 to AD7 pins.
4.
Apply a “L” level to the ALE pin. (Set up the addresses at the fall of ALE.)
5.
Apply a “L” level to the
RD pin to read data. (Data reading starts at the fall of RD.)
6.
Apply a “H” level to the
RD pin to end reading. (Data reading ends at the rise of RD.)
7.
To read data from the areas with consecutive addresses, repeat steps 5 to 6.
8.
Apply a “H” level to the
CS pin to terminate the use of the parallel interface.
CS
AD0-7
Address
Data
ALE
RD
Data
Repeat
Figure 4.4 Read Timing
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