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33784 датащи(PDF) 25 Page - Freescale Semiconductor, Inc |
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33784 датащи(HTML) 25 Page - Freescale Semiconductor, Inc |
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25 / 30 page ![]() Analog Integrated Circuit Device Data Freescale Semiconductor 25 33784 FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS COMMAND SUMMARY Refer to Table 10 for a summary of the commands available in the 33784. The responses to these commands are summarized in Table 11, page 26, and Table 12, page 27. The four-bit CRC, which appended to the end of every command and every response, has been committed. Table 10. Command Summary Command Names Data (LW & ELW only) Address Command Hex Description D7 D6 D5 D4 D3 D2 D1 D0 A3 A2 A1 A0 C3 C2 C1 C0 0 Initialization – BSH BSL OD PA3 PA2 PA1 PA0 A3 A2 A1 A0 0 0 0 0 1 Request Status – – – – – – – – A3 A2 A1 A0 0 0 0 1 2 Request AN0 – – – – – – – – A3 A2 A1 A0 0 0 1 0 3 I/O Control – L2 L1 L0 – DR2 DR1 DR0 A3 A2 A1 A0 0 0 1 1 4 Request ID Information – – – – – – – – A3 A2 A1 A0 0 1 0 0 5 Request AN1 – – – – – – – – A3 A2 A1 A0 0 1 0 1 6 Reserved – – – – – – – – A3 A2 A1 A0 0 1 1 0 7 Clear – – – – – – – – A3 A2 A1 A0 0 1 1 1 8 Reserved – – – – – – – – A3 A2 A1 A0 1 0 0 0 9 Reserved – – – – – – – – A3 A2 A1 A0 1 0 0 1 A Format Control R/W ADDR2 ADDR1 ADDR0 DATA3 DATA2 DATA1 DATA0 A3 A2 A1 A0 1 0 1 0 B Reserved C Reserved D Reserved E Reserved for test F Reserved – - – – - - - - --- -- --- Legend BSH = Controls closing of the High Side Bus Switch (1 = close). BSL = Controls closing of the Low Side Bus Switch (1 = close). DR[2:0] = Direction of I/O. 1 = Output. L[2:0] = Level to output on I/O if configured as outputs. “–” = Don’t care bit. Can be 0 or 1. PA[3:0] = Bus Address to set the device to. R/W = Controls if this is a read or write. Write = 1. ADDR[2:0] = Pointer to Format Control Register that is to be accessed. DATA[3:0] = Data to read from or write to in the pointed to Format Control Register. OD = Oscillator dither: 0 = no dither (default) 1 = dither |
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