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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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OMAP3530ECBC датащи(PDF) 230 Page - Texas Instruments |
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OMAP3530ECBC датащи(HTML) 230 Page - Texas Instruments |
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230 / 264 page  6.6.6 HDQ / 1-Wire Interfaces 6.6.6.1 HDQ Protocol HDQ tB tBR 030-095 HDQ tHW 1 tHW 0 tCYCH 030-096 OMAP3530/25 Applications Processor SPRS507F – FEBRUARY 2008 – REVISED OCTOBER 2009 www.ti.com Table 6-109. Correspondence Standard vs. TI Timing References (continued) TI-OMAP STANDARD-I2C S/F Mode HS Mode I6 th(SCLH-SDAH) THD;STA THD;STA I7 th(SCLH-RSTART) TSU;STO TSU;STO I8 tw(SDAH) TBUF This module is intended to work with both the HDQ and the 1-Wire protocols. The protocols use a single wire to communicate between the master and the slave. The protocols employ an asynchronous return to 1 mechanism where, after any command, the line is pulled high. Table 6-110 and Table 6-111 assume testing over the recommended operating conditions (see Figure 6-55 through Figure 6-58). Table 6-110. HDQ Timing Requirements PARAMETER DESCRIPTION MIN MAX UNIT tCYCD Bit window 253 µs tHW1 Reads 1 68 tHW0 Reads 0 180 tRSPS Command to host respond time(1) (1) Defined by software. Table 6-111. HDQ Switching Characteristics PARAMETER DESCRIPTION MIN TYP MAX UNIT tB Break timing 193 µs tBR Break recovery 63 tCYCH Bit window 253 tDW1 Sends1 (write) 1.3 tDW0 Sends0 (write) 101 Figure 6-55. HDQ Break (Reset) Timing Figure 6-56. HDQ Read Bit Timing (Data) TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS 230 Submit Documentation Feedback |
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