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M35071 датащи(PDF) 27 Page - Renesas Technology Corp |
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M35071 датащи(HTML) 27 Page - Renesas Technology Corp |
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27 / 40 page ![]() MITSUBISHI MICROCOMPUTERS M35071-XXXSP/FP SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS 26 (2) Data input (Sequence) (a) Addresses are consists of 16 bits. (b) Data is consists of 16 bits. (c) Addresses and data are communicated in 8-bit units. Input the lower 8 bits before the upper 8 bits. Make input from the MSB side. (d) After the start state has been attained and the control byte (7CH) received, the next 16 bits (2 bytes) are for inputting the address. Addresses are increased in increments for every 16 bits (2 bytes) of data input thereafter. As a result, it is not necessary to input the address from the second data. Note: During external synchronous, stop the external clock input from the TCK pin while inputting data. Fig. 14 Data input sequence ACK* (Acknowledge) : Output the acknowledge signal whenever one byte input after the start state. Output the acknowledge signal and recieve the data thereafter when mach the slave address (7CH). S T A R T S P M S B A C K A C K A C K A C K A C K A C K L S B M S B L S B M S B L S B M S B L S B M S B L S B S T O P Control byte (7 CH) Lower address (N) Upper address (N) Lower data (N) Upper data (N) lower data (N + 1) SDA * |
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