ak4589 AKM Semiconductor, Inc., ak4589 Datasheet - Page 70
![no-image](/images/no-image-200.jpg)
ak4589
Manufacturer Part Number
ak4589
Description
2/8-channel Audio Codec With Dir
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4589.pdf
(76 pages)
- Current page: 70 of 76
- Download datasheet (811Kb)
ASAHI KASEI
(2)-2 WRITE Operations
Set R/W bit = “0” for the WRITE operation of the AK4589.
After receipt the start condition and the first byte, the AK4589 generates an acknowledge, and awaits the second byte
(register address). The second byte consists of the address for control registers of AK4589. The format is MSB first, and
those most significant 3-bits are “Don’t care”.
After receipt the second byte, the AK4589 generates an acknowledge, and awaits the third byte. Those data after the
second byte contain control data. The format is MSB first, 8bits.
The AK4589 is capable of more than one byte write operation by one sequence.
After receipt of the third byte, the AK4589 generates an acknowledge, and awaits the next data again. The master can
transmit more than one words instead of terminating the write cycle after the first data word is transferred. After the
receipt of each data, the internal 5bits address counter is incremented by one, and the next data is taken into next
address automatically. If the address exceed 1FH prior to generating the stop condition, the address counter will “roll
over” to 00H and the previous data will be overwritten.
MS0339-E-00
SDA
D7
*
S
T
A
R
T
S
Slave
Address
D6
*
Figure 46. Byte structure after the second byte
A
C
K
D5
*
Figure 47. WRITE Operation
Register
Address(n)
Figure 45. The Second Byte
A4
D4
A
C
K
- 70 -
Data(n)
A3
D3
A
C
K
Data(n+1)
A2
D2
A
C
K
A1
D1
(*: Don’t care)
Data(n+x)
A0
D0
S
T
O
P
P
[AK4589]
2004/09
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