Datasheet
TSC2101
SLAS392D− JUNE 2003 − REVISED MAY 2005
www.ti.com
64
D7−D2 J_VAL 000001 R/W J value: Valid when PLL is enabled
000000 => Not valid,
000001 => 1,
000010 => 2,
000011 => 3,
……..
111100 => 60,
111101 => 61,
111110 => 62,
111111 => 63
D1−D0 00 R Reserved (Write only 00)
REGISTER ICH: PLL Programmability
BIT NAME RESET VALUE READ/WRITE FUNCTION
D15−D2 D_VAL 0
(decimal)
R/W D value: Valid when PLL is enabled
D value is valid from 0000 to 9999 in decimal.
Greater than 9999 is treated as 9999.
D1−D0 Reserved 0 R Reserved (Write only 00)
REGISTER IDH: Audio Control 4
BIT NAME RESET VALUE READ/WRITE FUNCTION
D15 ADSTPD 0 R/W Headset/Aux or Handset PGA Soft−stepping Control
0 => Enable soft−stepping
1 => Disable soft−stepping
D14 DASTPD 0 R/W DAC PGA Soft−stepping Control
0 => Enable soft−stepping
1 => Disable soft−stepping
D13 ASSTPD 0 R/W Analog Sidetone PGA Soft−stepping Control
0 => Enable soft−stepping
1 => Disable soft−stepping
Note: When soft−stepping is enabled gain is changed 0.5 dB per Fsref.
D12 CISTPD 0 R/W Cell−phone PGA Soft−stepping Control
0 => Enable soft−stepping
1 => Disable soft−stepping
Note: When soft−stepping is enabled gain is changed 0.5 dB per Fsref.
D11 BISTPD 0 R/W Buzzer PGA Soft−stepping Control
0 => Enable soft−stepping
1 => Disable soft−stepping
Note: When soft−stepping is enabled gain is changed 3 dB per Fsref.
D10−D9 AGCHYS 00 R/W MIC AGC Hysteresis selection
00 => 1 dB
01 => 2 dB
10 => 4 dB
11 => No Hysteresis
Note: Valid only when AGC is selected for Headset/Aux or Handset input
D8−D7 MB_HED 00 R/W Micbias for Headset
00 => MICBIAS_HED = 3.3 V
01 => MICBIAS_HED = 2.5 V
10 => MICBIAS_HED = 2.0 V
11 => MICBIAS_HED = 2.0 V
D6 MB_HND 0 R/W Micbias for Handset
0 => MICBIAS_HND = 2.5 V
1 => MICBIAS_HND = 2.0 V
D5−D2 0’s R Reserved (Write only 0000)
D1 SCPFL 0 R Driver Short Circuit Protection Flag.
0 => No short circuit happened.
1 => Short circuit detected on headphone outputs.
D0 X R Reserved (Write only 0)