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M37273M8 Fiches technique(PDF) 31 Page - Mitsubishi Electric Semiconductor |
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M37273M8 Fiches technique(HTML) 31 Page - Mitsubishi Electric Semiconductor |
31 / 138 page 31 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER M37273M8–XXXSP, M37273MF–XXXSP M37273E8SP, M37273EFSP MITSUBISHI MICROCOMPUTERS Rev. 1.0 8.6.2 I2C Address Register The I2C address register (address 00F716) consists of a 7-bit slave address and a read/write bit. In the addressing mode, the slave ad- dress written in this register is compared with the address data to be received immediately after the START condition are detected. (1) Bit 0: read/write bit (RBW) Not used when comparing addresses, in the 7-bit addressing mode. In the 10-bit addressing mode, the first address data to be received is compared with the contents (SAD6 to SAD0 + RBW) of the I2C address register. The RBW bit is cleared to “0” automatically when the stop condition is detected. (2) Bits 1 to 7: slave address (SAD0–SAD6) These bits store slave addresses. Regardless of the 7-bit address- ing mode and the 10-bit addressing mode, the address data trans- mitted from the master is compared with the contents of these bits. Fig. 8.6.3 I2C Address Register b7b6b5b4b3b2b1b0 0Read/write bit (RBW) 1 to 7 Slave address (SAD0 to SAD6) <Only in 10-bit addressing (in slave) mode> The last significant bit of address data is compared. 0: Wait the first byte of slave address after START condition (read state) 1: Wait the first byte of slave address after RESTART condition (write state) <In both modes> The address data is compared. I2C Address Register I2C address register (S0D) [Address 00F716] B Name Functions 0 0 After reset R W R— R W |
Numéro de pièce similaire - M37273M8 |
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Description similaire - M37273M8 |
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