TCD6000 Datasheet, PDF (15/36 Pages) Tripath Technology Inc. – 6 CHANNEL CLASS-T DIGITAL AUDIO PROCESSOR USING DIGITAL POWER PROCESSINGTM TECHNOLOGY

Mute Status
Tripath Technology, Inc. – Preliminary Technical Information
Addr
00h
Register Name
Mute Status
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0 MUS SMU FMU HMU AMU
0
0
0
0
0
0
0
0
This is a read only register that indicates the status of various mute conditions. A ‘1’ indicates that that
particular mute is active.
AMU = Auto Mute
HMU = Hard Mute
FMU = Fault Mute
SMU = Sync Mute
MUS is the logical OR of D3..D1. If any of the above mute states are active, MUS will be set to ‘1’.
Volume Status
Addr
01h
Register Name
Volume Status
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
VZ6 VZ5 VZ4 VZ3 VZ2 VZ1
0
0
0
0
0
0
0
0
These are read only bits that are set to ‘1’ when their respective volume registers are cleared to 0. For
example, when register 27h has a value of 8Ch, VZ3 is cleared to ‘0’. When register 27h has a value of 00h,
VZ3 is set to ‘1’.
Calibration Readback
Addr
02h
03h
04h
05h
06h
07h
08h
09h
Register Name
Calibration Readback
Calibration Readback
Calibration Readback
Calibration Readback
Calibration Readback
Calibration Readback
Calibration Readback
Calibration Readback
Default
D7
CR19
CR29
CR39
0
CR49
CR59
CR69
0
0
D6
CR18
CR28
CR38
0
CR48
CR58
CR68
0
0
D5
CR17
CR27
CR37
CR31
CR47
CR57
CR67
CR61
0
D4
CR16
CR26
CR36
CR30
CR46
CR56
CR66
CR60
0
D3
CR15
CR25
CR35
CR21
CR45
CR55
CR65
CR51
0
D2
CR14
CR24
CR34
CR20
CR44
CR54
CR64
CR50
0
D1
CR13
CR23
CR33
CR11
CR43
CR53
CR63
CR41
0
D0
CR12
CR22
CR32
CR10
CR42
CR52
CR62
CR40
0
These read only registers show the current automatic DC calibration values. The DC calibration values are
10 bit words so they are stored in separate bytes. For example, for channel 1, the 8 most significant bits are
stored in register 02h, while the 2 least significant bits are stored in register 05h – bits D1 and D0.
When PGC is enabled, four different automatic DC calibration values are stored internally – one for each
PGC setting. As the channel volume is changed across PGC boundaries, the Calibration Readback value
will change to reflect the new PGC setting.
For example, if the user changes channel 1 volume from FFh down to F0h, the PGC level has changed from
"full" down to "1/2". Internally, the TCD6000 switches from the DC calibration value that it calculated for full
PGC to the DC calibration value that it calculated for 1/2 PGC. The value present in the channel 1
Calibration Readback register also changes to indicate the 1/2 PGC DC calibration value.
Freeze Control
15
TCD6000 – Rev. 1.0/09.04