參數(shù)資料
型號(hào)： MSM7502
廠商： OKI SEMICONDUCTOR CO., LTD.
元件分類： Codec
英文描述： Multi-Function PCM CODEC
中文描述： 多功能的PCM編解碼器
文件頁(yè)數(shù)： 30/35頁(yè)
文件大小： 196K
代理商： MSM7502
M
3
Key scanning signal output control
WRITE Mode
Address Data
AD1 = 1, AD0 = 0
DB7
The data set on DB7 to DB0 are output on PO7 to PO0 respectively.
Output data is held until next data is written.
When the set data is set to "0", output data goes to "0", when set to "1", output pin becomes open.
At the initial setting, PO7 to PO0 are in open state.
DB6 DB5 DB4 DB3 DB2 DB1 DB0
Controlo Data
Description for Control
Output Data
Key scanning data read out
Read Mode
Address Data
AD1 = 1, AD0 = 0
DB7
PI7
Data input onto PI7 to PI0 are output onto DB7 to DB0.
DB6 DB5 DB4 DB3 DB2 DB1 DB0
PI6
PI5
PI4
PI3
Contorol Data
Description for Control
PI2
PI1
PI0
Key scanning interrupt reset
WRITE Mode
Address Data
AD1 = 1, AD0 = 1
DB7
0
INTT output is reset (Output = 1)
DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
Control Data
Description for Control
0
1
0
Valid during write mode only
Remarks
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