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BU2098F Folha de dados(PDF) 7 Page - Rohm |
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BU2098F Folha de dados(HTML) 7 Page - Rohm |
7 / 13 page BU2098F, BU2090F, BU2090FS Technical Note 7/12 www.rohm.com 2009.06 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. ○ Write DATA Send the stave address from master following the start condition (S). This address consists of 7 bits. The left 1 bit (the foot bit) is fixed “0”. The stop condition (P) is needed to finish the data transferred. But the re-send starting condition (Sr) enables to transfer the data without STOP (P). Fig.4 DATA transmit ○ Data format The format is following. Table 1 for WRITE format Slave address A0~A2 Each bit can be defined by the input levels of pins A0~A3. A3~A6 These 4 bits are fixed. R/W “0” Write Data D0~D7 Write “1” to D0 makes Q0 pin High-impedance. And write “0” makes Q0 pin LOW. D[1:7] and Q[1:7] are same as D0 and Q0. Table 2 for (A2, A1, A0) to SLAVE ADDRESS A6 A5 A4 A3 A2 A1 A0 Slave address 0 1 1 1 0 0 0 38H 0 1 1 1 0 0 1 39H 0 1 1 1 0 1 0 3AH 0 1 1 1 0 1 1 3BH 0 1 1 1 1 0 0 3CH 0 1 1 1 1 0 1 3DH 0 1 1 1 1 1 0 3EH 0 1 1 1 1 1 1 3FH S slave address R/W ACK DATA ACK P S slave address R/W ACK DATA ACK Sr slave address R/W ACK DATA ACK P S A6 A5 A4 A3 A2 A1 A0 R/W ACK D6 D5 D4 D3 D2 D1 D0 D7 ACK P SLAVE ADDRESS WRITE DATA Fixed for BU2098F Defined by external pin A0~A2 “0” (Write) “0” (Write) “0” (Write) |
Nº de peça semelhante - BU2098F |
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Descrição semelhante - BU2098F |
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