xwm8722eds ETC-unknow, xwm8722eds Datasheet - Page 16

• Manufacturer Part Number: xwm8722eds
• Description: Stereo Dac With Integrated Tone Generator And Line/variable Level Outputs
• Manufacturer: ETC-unknow

WM8722
Table 6 Internal Register Mapping
REGISTER TFREQ
TFREQ
Register 0
Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
Register 7
Register 8
Register 9
Register 10
Register 11
Register 12
Register 13
REGISTER
NAME
1
000 0000
000 0001
000 0010
000 0011
000 0100
000 0101
000 0110
000 0111
000 1000
000 1001
000 1010
000 1011
000 1100
000 1101
ADDRESS
REG
TONE FREQUENCY
This is the special register of 15 bit length with a single bit address, to allow values for the selected
tone frequency from 1Hz to 32767Hz to be written in one word. Writing 0 turns off the tone.
F
TONE
F[14:0]
DAL[7:0]
LDL
DAR[7:0]
LDR
MU
DE
PWD
IW[1:0]
PL[3:0]
I2S
LRP
ATC
MTRIML[4:0]
MUTE
MTRIMR[4:0]
MUTE
LVOL[6:0]
ZCEN
BOTH
RVOL[6:0]
ZCEN
BOTH
LMXSEL
M6DB0
BOTH
RMXSEL
M6DB1
BOTH
LVMXSEL
M6DB2
BOTH
RVMXSEL
M6DB3
BOTH
TTIM[7:0]
TVOL[4:0]
MUTE
TFIN
SQR
F2F
BIT NAME
= (F
TCLK
x T
FREQ [15:0]
Tone frequency value
DAC attenuation data for left channel
Attenuation data load control for left channel
DAC attenuation data for right channel
Attenuation data load control for right
channel
Left and right DACs soft mute control
De-emphasis control
Power off control
Input audio data bit length select
Output mode select
Audio data format select
Polarity of LRCIN (pin 18) select
Attenuator control
Left mixer 1 attenuation data
Left mixer mute
Right mixer 1 attenuation data
Right mixer mute
Left volume 2 attenuation data
Zero cross enable
Update left + right channels
Right volume 2 attenuation data
Zero cross enable
Update right + left channels
Left mixer output mux control
M6DB for left mix output
Update left + right channels
Right mixer output mux control
M6DB for right mix output
Update right + left channels
Left variable output mux control
M6DB for left variable output
Update left + right channels
Right variable output mux control
M6DB for right variable output
Update right + left channels
Tone duration
Tone amplitude
Tone mute
Tone burst finish on zero cross
Tone sine or square wave
Tone one cycle at F, two cycle at 2xF
)/27x10
6
DESCRIPTION
11100 (normal stereo)
11100 (normal stereo)
11100 (normal stereo)
11100 (normal stereo)
1001 (normal stereo)
0 (finish on full cycle)
000 0000 0000 0000
0 ( NORMAL format)
11111 (max output)
000 0000 (no tone)
DEFAULT VALUE
111 1111 (0dB)
111 1111 (0dB)
0 (de-emph off)
1111 001 (0dB)
1111 001 (0dB)
0 (not muted)
0 (not muted)
0 (sine wave)
0 (power on)
10111 (0dB)
10111 (0dB)
0 (normal F)
0 (not mute)
0 (not mute)
00 (16 bit)
0 (0dB)
0 (0dB)
0 (0dB)
0 (0dB)
AI Rev 2.1 June 2001
Advanced Information
0
0
0
0
0
0
0
0
0
0
0
0
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