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4513 датащи(PDF) 37 Page - Renesas Technology Corp |
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4513 датащи(HTML) 37 Page - Renesas Technology Corp |
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37 / 97 page ![]() 36 4513/4514 Group SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS (5) How to use serial I/O Figure 24 shows the serial I/O connection example. Serial I/O inter- rupt is not used in this example. In the actual wiring, pull up the wiring between each pin with a resistor. Figure 25 shows the data transfer timing and Table 13 shows the data transfer sequence. Fig. 24 Serial I/O connection example SOUT SRDY signal SCK SIN D5 SCK SOUT SIN D5 Master (clock control) Serial I/O interrupt enable bit (SNZSI instruction is valid) Interrupt control register V2 Serial I/O mode register J1 Serial I/O port SCK,SOUT,SIN Instruction clock divided by 8 or 4 selected as a transfer clock Internal clock selected as a synchronous clock Slave (external clock) ✕ 0 1 (Bit 3) (Bit 0) 1 ✕ ✕ 0 1 ✕✕ ✕✕ This bit is not valid when J10=“0” ✕ : Set an arbitrary value. (Bit 3) (Bit 0) (Bit 3) (Bit 0) (Bit 3) (Bit 0) 0 ✕✕ ✕ Serial I/O interrupt enable bit (SNZSI instruction is valid) Interrupt control register V2 Serial I/O port SCK,SOUT,SIN External clock selected as a synchronous clock Serial I/O mode register J1 |
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