msm7719-01 Oki Semiconductor, msm7719-01 Datasheet - Page 38

• Manufacturer Part Number: msm7719-01
• Description: Echo Canceler With Adpcm Transcoder
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Direct Access to Default Store Memory
The contents of the default store memory can be
Refer to the following procedure:
• Set the default value store memory address
• Set the write data into CR15 and CR16.
• Set the DMWR (change default) command
changed (e.g., to change tone detection levels
and tone generation frequencies) in the initial
mode (CR0-B3 to CR0-B0=“0000”).
(CR13, CR14).
(CR10-B4=“1”).
Data (CR15, CR16)
Figure 7 Memory Map for Default Value Store Memory Direct Access
Default Value Store
Memory
Figure 8 Flow Chart of Default Value Store
Address (CR13, CR14)
Yes
Memory Direct Access
Default Value Store Memory
write in upper byte
Set command to
Set write data.
Direct Access
Set address.
Continue to
(DMWR)
write?
END
No
(1) CR13, CR14
(2) CR10
MSM7719-01
CR15, CR16
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