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ISD5216PI Datasheet(PDF) 18 Page - Winbond

Part # ISD5216PI
Description  8 to 16 minutes voice record/playback device with integrated codec
PDF  75 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

ISD5216PI Datasheet(HTML) 18 Page - Winbond

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ISD5216
- 18 -
Master Reads from Slave immediately after first byte (Read Mode)
R/W
From
Master
Start Bit
From
Master
Stop Bit
From
Master
acknowledgement
from slave
acknowledgement
from Master
not-acknowledged
from Master
acknowledgement
from Master
From Master
From Slave
From Slave
From Slave
SR
A
A
A
N
P
Low ADDR BYTE
SLAVE ADDRESS
STATUS W ORD
High ADDR. BYTE
Another common operation in the ISD5216 is the reading of digital data from the chip’s memory array
at a specific address. This requires the I
2C interface Master to first send an address to the ISD5216
Slave device, and then receive data from the Slave in a single I
2C operation. To accomplish this, the
data direction R/W bit must be changed in the middle of the command. The following example shows
the Master sending the Slave address, then sending a Command Byte and 2 bytes of address data to
the ISD5216, and then immediately changing the data direction and reading some number of bytes
from the chip’s digital array. An unlimited number of bytes can be read in this operation. The “N” not-
acknowledge cycle from the Master forces the end of the data transfer from the Slave. The following
example details the transfer explained in the section on page 22 of this datasheet.
Master Reads from the Slave after setting data address in Slave
(Write data address, READ Data)
SW A
A
A
A
SLAVE ADDRESS
COMMAND BYTE
High ADDR. BYTE
Low ADDR. BYTE
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
From
Master
Start Bit
From
Master
SR
A
A
A
N
P
8 BITS of DATA
SLAVE ADDRESS
8 BITS of DATA
8 BITS of DATA
R/W
From
Master
Start Bit
From
Master
Stop Bit
From
Master
acknowledgement
from slave
acknowledgement
from Master
not-acknowled
from Master
acknowledgement
from Master
From Master
From Slave
From Slave
From Slave



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