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MB85RC128A Datasheet, PDF (7/32 Pages) Fujitsu Component Limited. – 128 K (16 K × 8) ビットI2C | |||
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MB85RC128A
â ã³ãã³ã
ã»Byte Write
ã¹ã¿ã¼ãã»ã³ã³ãã£ã·ã§ã³ã«ç¶ãã¦ããã¤ã¹ã»ã¢ãã¬ã¹ã»ã¯ã¼ã (R/W â0â å
¥å ) ãéä¿¡ãããã¨ã§ , ã¹ã¬ã¼ããã ACK ã
å¿çãã¾ãããã® ACK å¾ , åæ§ã«æ¸è¾¼ã¿ã¡ã¢ãªã¢ãã¬ã¹ , æ¸è¾¼ã¿ãã¼ã¿ãéä¿¡ã , æå¾ã«ã¹ãããã»ã³ã³ãã£ã·ã§ã³ ãçº
è¡ãããã¨ã§æ¸è¾¼ã¿ãå®äºãã¾ãã
S 1 0 1 0 A2 A1 A0 0 A
Address
High 8bits
A
Address
Low 8bits
A
Write
Data 8bits
AP
00 XXXXXX
MSB
X X X X X X XX
LSB
ãã¹ã¿ããã®ã¢ã¯ã»ã¹
ã¹ã¬ã¼ãããã®ã¢ã¯ã»ã¹
S ã¹ã¿ã¼ãã»ã³ã³ãã£ã·ã§ã³
P ã¹ãããã»ã³ã³ãã£ã·ã§ã³
A ACK (SDA ã âLâ ã¬ãã« )
ï¼æ³¨æäºé
ï¼MB85RC128A ã§ã¯ , MSB ã®ä¸ä½ 2 ãããã«ã¯ â00â ãå
¥åãã¦ãã ããã
ã»Page Write
Byte Write ã¨åæ§ã®ã³ãã³ã ( ã¹ãããã»ã³ã³ãã£ã·ã§ã³ãé¤ã ) ãéä¿¡ããå¾ , é£ç¶ãã¦ãã¼ã¿éä¿¡ãããã¨ã§ , 次ã®
ã¡ã¢ãªã¢ãã¬ã¹ä»¥éãæ¸è¾¼ã¿ã¾ãã
æçµã¡ã¢ãªã¢ãã¬ã¹ã«å°éãã㨠å
é ã¡ã¢ãªã¢ãã¬ã¹ (0000H) ã«ãã¼ã«ãªã¼ããã¾ãããããã£ã¦ , 16 K ãã¤ã以ä¸é
ä¿¡ããå ´å , æåã«æ¸è¾¼ã¿ãã FRAM ã¡ã¢ãªã¢ãã¬ã¹ã®å
é ããé ã«ä¸æ¸ãããã¦ããã¾ãã
ãªã , FRAM ã¯æ¸è¾¼ã¿ãé«éãªãã , ACK ã®å¿çãå®äºããç´å¾ã«ã¯ , ä¸æ®çºæ§ã¡ã¢ãªã¸ã®ãã¼ã¿æ¸è¾¼ã¿ãæ¢ã«å®äºã
ã¦ãã¾ãã
S 1 0 1 0 A2 A1 A0 0 A
Address
High 8bits
A
Address
Low 8bits
A
Write
Data 8bits
A
Write
Data
... A P
ãã¹ã¿ããã®ã¢ã¯ã»ã¹
ã¹ã¬ã¼ãããã®ã¢ã¯ã»ã¹
S ã¹ã¿ã¼ãã»ã³ã³ãã£ã·ã§ã³
P ã¹ãããã»ã³ã³ãã£ã·ã§ã³
A ACK (SDA ã âLâ ã¬ãã« )
ï¼æ³¨æäºé
ï¼ã¹ãããã»ã³ã³ãã£ã·ã§ã³çºè¡å¾ , ãããã¡ããã¡ã¢ãªã¸ã®å
é¨æ¸è¾¼ã¿ãµã¤ã¯ã«æéãã¨ãå¿
è¦ã¯ããã¾ããã
DS501-00018-2v0-J
7
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