ml7037-003 Oki Semiconductor, ml7037-003 Datasheet - Page 33

• Manufacturer Part Number: ml7037-003
• Description: Dual Echo Canceler & Noise Canceler With Dual Codec For Hands-free
• Manufacturer: Oki Semiconductor

MICRO CONTROLLER INTERFACE
A way to use the micro controller interface is shown herebelow;
OKI Semiconductor
REGOUT (90% or higher)
Set CR's (excl. CR0)
PDN pin = logic '0'
PDN pin = logic '1'
Power Supply ON
Starts Operation
Memory Access
CR10-B7="1"
CR10-B7="0"
Internal Data
（Read）
Set CR0
(Read)
Start
No
Yes
Yes
Figure 25 Micro Controller Interface Flow Chart
CR6 (Upper Address Write)
CR7 (Lower Address Write)
No
CR8 (Upper Data Write)
CR9 (LowerData Write)
CR1-B7="1" (Write)
Yes
Another Internal Data
No
Memory Setting?
CR1-B7="0"
(Read)
No
Yes
Wait for 250ms (approx.) or
Yes
No
longer
* CR1-B7 is automatically cleared
af ter a completion of a write.
Internal Data Memory
Access
PEDL7037-003-01Zz_Digest
Initial Mode
ML7037-003
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