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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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STE2004 数据表(PDF) 33 Page - STMicroelectronics |
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STE2004 数据表(HTML) 33 Page - STMicroelectronics |
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33 / 66 page  33/66 STE2004 Figure 41. 3-lines serial bus protocol - one byte transmission Figure 42. 3-lines serial bus protocol - several byte transmission Figure 43. 3-lines serial interface protocol in Reading Mode Figure 44. 3-lines Serial Reading Sequence MSB SD/C CS SDIN SCLK LR0073 LSB DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 D/C CS SDIN SCLK LR0074 D/C DB7 DB6 D/C DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 CS SDIN SCLK High-Z DB1 DB0 High-Z Don't Care Don't Care Don't Care Don't Care Don't Care Don't Care Don't Care Command Write DATA Read DB7 DB6 DB5 DB4 DB3 DB2 SD/C SDOUT High-Z DB1 DB0 High-Z DB7 DB6 DB5 DB4 DB3 DB2 ID-Number STATUS BYTE Don't Care LR0075 DB7 SD/C READING SEQUENCE Write a "00000000" Instruction Source 9 pulses on SCLK and Read the ID Number or the Status Byte On SDOUT END OF READING SEQUENCE SDOUT Buffer Configured in High Impedence LR0080 SDOUT Buffer becomes active (Low Impedence) 1 note: 1) these data are not read by the display Diver 2) SDIN and SDOUT can be short circuited if the processor can configure serial output buffers in high impedence during data read . |
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