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FS6407 датащи(PDF) 62 Page - NXP Semiconductors |
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FS6407 датащи(HTML) 62 Page - NXP Semiconductors |
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62 / 111 page ![]() 62 NXP Semiconductors FS6407/FS6408 The device contains several registers. Their address is coded on 7 bits (bits 15 to 9). Each register controls or reports part of the device function. Data can be written to the register, to control the device operation or set default value or behavior. Every register can also be read back to ensure its content (default setting or value previously written) are correct. 7.1.4 Register description Although the minimum time between two NCS low sequences is defined by tONNCS (Figure 48), two consecutive accesses to the fail-safe registers must be done with a 3.5 µs minimum NCS high time in between. Although the minimum time between two fail-safe registers accesses is 3.5 µs, some SPI accesses to the main registers can be done in between (Figure 48). 7.2 Detail operation Figure 48. MOSI / MISO SPI command organization Table 12. MOSI bits description R / W Description Set if it is a READ or WRITE Command 0 READ 1WRITE M / FS Description Split the addresses between Fail-safe state machine and main Logic 0Main 1Fail-safe A4:0 Description Set the address to Read or Write 0 See Register Mapping 1 P Description Parity bit (only use in Write mode). Set to 0 in Read mode 0 Number of “1” (bit15:9 and bit 7:0) is odd 1 Number of “1” (bit15:9) and bit 7:0) is even D7:0 Description Data in Write mode. Must be set to 00h in Read mode 0 See Register Details 1 |
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