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PCM1792ADB.B Datasheet(PDF) 21 Page - Texas Instruments |
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PCM1792ADB.B Datasheet(HTML) 21 Page - Texas Instruments |
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21 / 65 page ![]() PCM1792A SLES105B − FEBRUARY 2004 − REVISED NOVEMBER 2006 www.ti.com 21 MSB LSB Register Index (or Address) Register Data R/W IDX6 IDX5 IDX4 IDX3 IDX2 IDX1 IDX0 D7 D6 D4 D5 D3 D2 D1 D0 Figure 29. Control Data Word Format for MDI High Impedance When Read Mode is Instructed A0 D7 D6 D4 D5 D3 D2 D1 D0 D7 D6 D4 D5 D3 D2 D1 D0 R/W A1 A2 A3 A4 A5 A6 MS MC MDI MDO NOTE: Bit 15 is used for selection of write or read. Setting R/W = 0 indicates a write, while R/W = 1 indicates a read. Bits 14−8 are used for the register address. Bits 7–0 are used for register data. Figure 30. Serial Control Format t(MCH) 50% of VDD MS t(MSS) LSB 50% of VDD 50% of VDD t(MCL) t(MHH) t(MSH) t(MCY) t(MDH) t(MDS) MC MDI t(MOS) 50% of VDD MDO PARAMETER MIN MAX UNITS t(MCY) MC pulse cycle time 100 ns t(MCL) MC low-level time 40 ns t(MCH) MC high-level time 40 ns t(MHH) MS high-level time 80 ns t(MSS) MS falling edge to MC rising edge 15 ns t(MSH) MS hold time(1) 15 ns t(MDH) MDI hold time 15 ns t(MDS) MDI setup time 15 ns t(MOS) MC falling edge to MDO stable 30 ns (1) MC rising edge for LSB to MS rising edge Figure 31. Control Interface Timing |
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