MB85RC64V Datasheet, PDF (8/32 Pages) Fujitsu Component Limited. – 64 K (8 K×8) ビットI2C

MB85RC64V
ɾCurrent Address Read
લճͷॻࠐΈ·ͨ͸ಡग़͠ಈ࡞ΛετοϓɾίϯσΟγϣϯ·Ͱਖ਼ৗऴྃͨ͠৔߹ , ͦͷ࠷ʹޙΞΫηεͨ͠ΞυϨε
Λ n ͱ͢Δͱ , ͦͷ··ి ݯOFF ͤͣʹԼهίϚϯυΛૹ৴͢Δ͜ͱͰ , n+1 ΞυϨεΛಡΈग़ͤ·͢ɻલճΞυϨε͕
࠷ऴΞυϨεͷ৔߹͸ , ઌ಄ϝϞϦΞυϨε (0000H) ʹϩʔϧΦʔόʔͯ͠ಡΈग़͠·͢ɻి্ཱ͛ͪݯ௚ޙͷ Current
Address ( ϝϞϦΞυϨεόοϑΝ͕ࣔ͢ΞυϨε ) ͸ෆఆͰ͢ɻ
Ϛελ͔ΒͷΞΫηε
ΞυϨε n+1
S 1 0 1 0 A2 A1 A0 1 A
Read
Data 8bits
NP
εϨʔϒ͔ΒͷΞΫηε
S ελʔτɾίϯσΟγϣϯ
P ^{ετοϓɾίϯσΟγϣϯ}
A ACK (SDA ͕ “L” Ϩϕϧ )
N ^{NACK (SDA ͕ “H” Ϩϕϧ )}
ɾRandom Read
ॻࠐΈͱಉ༷ʹΞυϨεࢦఆͨ͠ ޙ, ࠶౓ελʔτɾίϯσΟγϣϯΛൃߦͯ͠ , σόΠεɾΞυϨεɾϫʔυ (R/W “1”
ೖྗ ) Λૹ৴͢Δ͜ͱʹΑͬͯ , ϝϞϦΞυϨεόοϑΝʹอଘ͞Ε͍ͯͨΞυϨε൪஍͔Β , 1 όΠτͷσʔλΛ , SCL
ʹಉͯ͠ظಡΈग़ͤ·͢ɻ
ޙ࠷ͷ NACK (SDA ͕ “H” Ϩϕϧ ) ͸ , σʔλΛड৴ͨ͠Ϩγʔό͔Βൃߦ͠·͢ɻ͜ͷ৔߹͸Ϛελଆ͔ΒͷൃߦͰ͢ɻ
S 1 0 1 0 A2 A1 A0 0 A
Address
High 8bits
A
Address
Low 8bits
A S 1 0 1 0 A2 A1 A0 1 A
Read
Data 8bits
NP
Ϛελ͔ΒͷΞΫηε
εϨʔϒ͔ΒͷΞΫηε
S ελʔτɾίϯσΟγϣϯ
P ετοϓɾίϯσΟγϣϯ
A ACK (SDA ͕ “L” Ϩϕϧ )
N ^{NACK (SDA ͕ “H” Ϩϕϧ )}
ɾSequential Read
Random Read ͱಉ༷ͷΞυϨεࢦఆ , σόΠεɾΞυϨεɾϫʔυ (R/W “1” ೖྗ ) ʹଓ͚ͯ , σʔλΛ࿈ଓͯ͠ड৴Ͱ͖
·͢ɻ
࠷ऴΞυϨεʹ౸ୡ͢Δͱ , ಡग़͠ΞυϨε͸ࣗಈతʹઌ಄ϝϞϦΞυϨε (0000H) ΁ϩʔϧΦʔό͠ಡग़͠Λଓ͚·
͢ɻ
...
A
Read
Data 8bits
A
Read
Data
... _A
Read
Data 8bits
NP
Ϛελ͔ΒͷΞΫηε
εϨʔϒ͔ΒͷΞΫηε
P ετοϓɾίϯσΟγϣϯ
A ^{ACK (SDA ͕ “L” Ϩϕϧ )}
N NACK (SDA ͕ “H” Ϩϕϧ )
8
DS501-00013-6v0-J