AK4589 Datasheet, PDF (70/76 Pages) Asahi Kasei Microsystems – 2/8 CHANNEL AUDIO CODEC WITH DIR

ASAHI KASEI
[AK4589]
(2)-2. WRITE໋ྩ
R/W bit͕ “0”ͷ৔߹ɺAK4589͸WRITEಈ࡞Λߦ͍·͢ɻWRITEಈ࡞Ͱ͸ɺεϨʔϒΞυϨεड৴ޙɺୈ2ό
ΠτΛड৴͠·͢ɻୈ2όΠτ͸಺෦ίϯτϩʔϧϨδελͷΞυϨεΛࢦఆ͢ΔόΠτͰɺMSB firstͰߏ੒
͞Ε্Ґ3Ϗοτ͸Don’t careͰ͢ɻ
*
*
*
A4
A3
A2
A1
A0
(*: Don’t care)
Figure 45. ୈ2όΠτͷߏ੒
ୈ3όΠτҎ͕߱ίϯτϩʔϧσʔλʹͳΓ·͢ɻίϯτϩʔϧσʔλ͸8ϏοτɺMSB firstͰߏ੒͞Ε·͢ɻ
D7
D6
D5
D4
D3
D2
D1
D0
Figure 46. ୈ3όΠτҎ߱ͷߏ੒
AK4589͸ෳ਺ͷόΠτͷσʔλΛҰ౓ʹॻ͖ࠐΉ͜ͱ͕Ͱ͖·͢ɻσʔλΛ1όΠτૹͬͨޙετοϓ·ίϯ
σΟγϣϯΛૹΒͣߋʹσʔλΛૹΔͱɺ಺෦ΞυϨεΧ΢ϯλ͸ࣗಈతʹΠϯΫϦϝϯτ͠ɺσʔλ͸࣍
ͷΞυϨεʹ֨ೲ͞Ε·͢ɻΧ΢ϯλ͸1FHΛӽ͑Δͱϩʔϧ·Φʔό͠ɺ࣍ͷσʔλ͸ΞυϨε00H͔Βॱ
ʹ֨ೲ͞Ε·͢ɻ
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 47. WRITE໋ྩ
S
T
Data(n+x) _O
P
P
MS0339-J-00
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2004/09