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AK4688EN Datasheet, PDF (26/36 Pages) Asahi Kasei Microsystems – Asynchronous Stereo CODEC with Capless Line I/O | |||
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[AK4688]
2. WRITEå½ä»¤
R/W bitã â0âã®å ´åãAK4688ã¯WRITEåä½ãè¡ãã¾ããWRITEåä½ã§ã¯ãã¹ã¬ã¼ãã¢ãã¬ã¹åä¿¡å¾ãã¢ã¯ã
ãªãã¸ãçæã第2ãã¤ããåä¿¡ãã¾ãã第2ãã¤ãã¯å
é¨ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ã®ã¢ãã¬ã¹ãæå®ãããã¤
ãã§ãMSB firstã§æ§æããä¸ä½3ãããã¯Donât careã§ãã
*
*
*
A4
A3
A2
A1
A0
(*: Donât care)
Figure 16. The Second Byte
第2ãã¤ãåä¿¡å¾ãã¢ã¯ããªãã¸ãçæã第3ãã¤ããåä¿¡ãã¾ãã第3ãã¤ã以éãã³ã³ããã¼ã«ãã¼ã¿ã«ãª
ãã¾ããã³ã³ããã¼ã«ãã¼ã¿ã¯8ããããMSB firstã§æ§æããã¾ãã
D7
D6
D5
D4
D3
D2
D1
D0
Figure 17. Byte structure after the second byte
AK4688ã¯è¤æ°ã®ãã¤ãã®ãã¼ã¿ãä¸åº¦ã«æ¸ãè¾¼ããã¨ãã§ãã¾ãã第3ãã¤ãåä¿¡å¾ãã¢ã¯ããªãã¸ãçæ
ã次ã®ãã¼ã¿åä¿¡å¾
ã¡ã«ãªãã¾ããã¹ããã·ã³ã³ãã£ã·ã§ã³ãéããæ´ã«ãã¼ã¿ãéãã¨ãå
é¨ã¢ãã¬ã¹ã«
ã¦ã³ã¿ã¯èªåçã«ã¤ã³ã¯ãªã¡ã³ããããã¼ã¿ã¯æ¬¡ã®ã¢ãã¬ã¹ã«æ ¼ç´ããã¾ããã«ã¦ã³ã¿ã¯03Hãè¶ããã¨ã
ã¼ã«Â·ãªã¼ããã次ã®ãã¼ã¿ã¯ã¢ãã¬ã¹00Hããé ã«æ ¼ç´ããã¾ãã
SDA
S
T
A Slave
R Address
T
Register
Address(n)
Data(n)
Data(n+1)
S
A
A
A
A
C
C
C
C
K
K
K
K
Figure 18. WRITE Operation
S
T
Data(n+x) O
P
P
MS1420-J-00
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2012/05
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