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ES9027QPRO Datasheet(PDF) 74 Page - ESS Technology,Inc |
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ES9027QPRO Datasheet(HTML) 74 Page - ESS Technology,Inc |
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74 / 89 page  ES9027PRO Datasheet VERSION 0.4.1 ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 • WWW.ESSTECH.COM 74 Register 125-124: AUTOMUTE TIME Bits [15:12] [11] [10:0] Default 4'd0 1'b1 11'd15 Bits Mnemonic Description [15:12] RESERVED NA [11] AUTOMUTE_RAMP_TO_GROUND • 1'b0: When ramped to min volume during normal mute, do not soft ramp to ground • 1'b1: When ramped to min volume during normal mute, soft ramp to ground for power saving (default) normal mute includes: automute, mute by register, mute by GPIO [10:0] AUTOMUTE_TIME Configures the amount of time in seconds the audio must remain below AUTOMUTE_LEVEL before an automute condition is flagged. Valid from 0 (disabled) to 11'h7FF (fastest), where 11'h001 is the slowest ������������������������ [������] = 218 ������������������������������������������������_������������������������ ∗ ������������ Register 127-126: AUTOMUTE LEVEL Bits [15:0] Default 16'0008 Bits Mnemonic Description [15:0] AUTOMUTE_LEVEL Configures the threshold which the audio must be below before an automute condition is flagged. Valid from: 16'hFFFF (-42dB) to 16'h0001 (-132dB) Shift right 1 bit corresponds to -6dB Note: this register works in tandem with AUTOMUTE_TIME to create the automute condition Register 129-128: AUTOMUTE OFF LEVEL Bits [15:0] Default 16'000A Bits Mnemonic Description [15:0] AUTOMUTE_OFF_LEVEL Configures the threshold which the audio must be above before the automute condition is cleared (cleared immediately). Valid from: 16'hFFFF (-42dB) to 16'h0001 (-132dB) Shift right 1 bit corresponds to -6dB Register 130: SOFT RAMP CONFIG Bits [7:5] [4:0] Default 3'd0 5'd3 Bits Mnemonic Description [7:5] RESERVED NA [4:0] SOFT_RAMP_TIME Sets the amount of time that it takes to perform a soft start ramp. This time affects both ramp to ground and ramp to AVCC/2. Valid from 0 to 20 (inclusive). ������������������������ [������] = 4096 ∗ 2������������������������_������������������������_������������������������+1 ������������������������������������������[������������] |
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