msm7502 Oki Semiconductor, msm7502 Datasheet - Page 30

• Manufacturer Part Number: msm7502
• Description: Multi-function Pcm Codec Msm7502multi-function Pcm Codec
• Manufacturer: Oki Semiconductor

Key scanning signal output control
WRITE Mode
Address Data
Key scanning data read out
Read Mode
Address Data
Key scanning interrupt reset
WRITE Mode
Address Data
DB7
DB7
DB7
PI7
0
DB6 DB5 DB4 DB3 DB2 DB1 DB0
DB6 DB5 DB4 DB3 DB2 DB1 DB0
DB6 DB5 DB4 DB3 DB2 DB1 DB0
PI6
0
PI5
0
Controlo Data
Contorol Data
Control Data
AD1 = 1, AD0 = 0
AD1 = 1, AD0 = 0
AD1 = 1, AD0 = 1
Output Data
PI4
0
PI3
0
PI2
0
PI1
0
PI0
1
INTT output is reset (Output = 1)
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.
Data input onto PI7 to PI0 are output onto DB7 to DB0.
Description for Control
Description for Control
Description for Control
Valid during write mode only
Remarks