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MCP47FVB01 数据表(PDF) 58 Page - Microchip Technology |
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MCP47FVB01 数据表(HTML) 58 Page - Microchip Technology |
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58 / 92 page ![]() MCP47FVBXX DS20005405A-page 58 2015 Microchip Technology Inc. FIGURE 7-7: Continuous Read Command Of Specified Address. Control Byte Read Command S0 AD AD AD AD AD A1 1 X A Sr 1 2 3 4 I2C™ Slave Address Memory Address Command Control Byte Read bits D DD D D D D D A D DD DD DD D A 1A Read Data bits 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 0 SA 6 SA 5 SA 4 SA 3 SA 2 SA 1 SA 0 SA 6 SA 5 SA 4 SA 3 SA 2 SA 1 SA 0 I2C Slave Address Read bits D DDD D D D D A D DDDD DD D A Read Data bits 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 Read bits D DDD D D D D A D DDD D D D D A Read Data bits 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 P Write bit Repeated Start bit Start bit ACK bit (1) ACK bit (1) Read bit ACK bit (4) ACK bit (5) Stop bit (2, 3) ACK bit (1) ACK bit (5) ACK bit (4) ACK bit (4) ACK bit (5) Note 1: The Acknowledge bit is generated by the MCP47FVBXX. 2: At the falling edge of the SCL pin for the Read command ACK bit, the MCP47FVBXX device updates the value of the specified device register. 3: This command sequence does not need to terminate (using the Stop bit), and the Read command can be repeated (see continuous read format, Section 7.2.2 “Continuous Reads”). 4: Master Device is responsible for A / A signal. If a A signal occurs, the MCP47FVBXX will abort this transfer and release the bus. 5: The Master Device will Not Acknowledge, and the MCP47FVBXX will release the bus so the Master Device can generate a Stop or Repeated Start condition. |
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