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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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R8C/15 датащи(PDF) 165 Page - Renesas Technology Corp |
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R8C/15 датащи(HTML) 165 Page - Renesas Technology Corp |
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165 / 277 page  R8C/14 Group, R8C/15 Group 15. Clock Synchronous Serial I/O with Chip Select (SSU) Rev.2.10 Jan 19, 2006 Page 153 of 253 REJ09B0164-0210 15.4 Communication Modes and Pin Functions SSU switches functions of the I/O pin in each communication mode according to the setting of the MSS bit in the SSCRH register and the RE and TE bits in the SSER register. Table 15.3 shows the Association between Communication Modes and I/O Pins. NOTES: 1. This pin can be used as programmable I/O port. 2. Do not set both the TE and RE bits to “1” in 4-wire bus (bidirectional) communication mode. SSUMS and BIDE : Bits in SSMR2 register MSS : Bit in SSCRH register TE and RE : Bits in SSER register Table 15.3 Association between Communication Modes and I/O Pins Communication Mode Bit Setting Pin State SSUMS BIDE MSS TE RE SSI SSO SSCK Clock Synchronous Communication Mode 0 Disabled 001Input −(1) Input 10 −(1) Output Input 1 Input Output Input 101Input −(1) Output 10 −(1) Output Output 1 Input Output Output 4-Wire Bus Communication Mode 1 0 001 −(1) Input Input 1 0 Output −(1) Input 1 Output Input Input 101Input −(1) Output 10 −(1) Output Output 1 Input Output Output 4-Wire Bus (Bidirectional) Communication Mode(2) 1 1 001 −(1) Input Input 10 −(1) Output Input 101 −(1) Input Output 10 −(1) Output Output |
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