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參數(shù)資料
| 型號(hào)： | WM8722 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Stereo DAC with Integrated Tone Generator and Line/Variable Level Outputs |
| 中文描述： | 立體聲DAC，具有集成的音調(diào)發(fā)生器和線/變平輸出 |
| 文件頁(yè)數(shù)： | 15/23頁(yè) |
| 文件大?。?/td> | 438K |
| 代理商： | WM8722 |
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Advanced Information
WM8722
WOLFSON MICROELECTRONICS LTD
AI Rev 1.5 May 2000
15
REGISTER MAP
The WM8722 controls the device functions using 15 program registers, each of which is 16-bits long.
These registers are all loaded via the serial control interface in either 2 or 3-wire mode.
There are two type of control word; either TFRQ, the tone frequency word, which is a single address
bit followed by 15 data bits, or other types, which have 6 address bits, and 10 bits of data. Other
types have the lead address bit inverted compared to TFREQ words, allowing use of a single write to
load the required frequency.
REG
TFREQ
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
B15
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
F[14:0]
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
LDL
LDR
DAL [7:0]
DAR[7:0]
IW1
res
PL[3:0]
IW0
res
PWD
ATC
DE
LRP
MU
I2S
res
BOTH
BOTH
BOTH
BOTH
BOTH
BOTH
BOTH
BOTH
res
F2F
res
res
res
ZCEN
ZCEN
res
res
res
res
res
res
res
res
MUTE
MUTE
MTRIML[4:0]
MTRIMR[4:0]
LVOL[6:0]
RVOL[6:0]
res
res
res
res
M6DB0
M6DB1
M6DB2
M6DB3
LMXSEL(4-0)
RMXSEL(4-0)
LVMXSEL(4-0)
RVMXSEL(4-0)
TTIM[7:0]
R
R
SQR
TFIN
MUTE
TVOL[4:0]
Table 5. Mapping of Program Registers
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