wm8805 Wolfson Microelectronics plc, wm8805 Datasheet - Page 60

• Manufacturer Part Number: wm8805
• Description: 8 1 Digital Interface Transceiver With Pll
• Manufacturer: Wolfson Microelectronics plc

WM8805
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REGISTER
ADDRESS
SPDTX4
SPDTX5
GPO01
GPO23
GPO45
R21
R22
R23
R24
R25
R26
15h
16h
17h
18h
19h
BIT
7:6
3:0
5:4
3:1
7:4
3:0
7:4
3:0
7:4
3:0
7:4
3:0
6
7
0
CHNUM2[1:0]
CLKACU[1:0]
TXSTATSRC
ORGSAMP
GPO0[3:0]
GPO1[3:0]
GPO2[3:0]
GPO3[3:0]
GPO4[3:0]
GPO5[3:0]
GPO6[3:0]
FREQ[3:0]
TXWL[2:0]
MAXWL
LABEL
TXSRC
[3:0]
DEFAULT
0111
0011
0010
0001
0000
0111
0101
0110
0000
101
00
11
1
0
1
11
Channel Number for Subframe 2
CHNUM2
00
01
10
11
Indicated Sampling Frequency
Refer to S/PDIF specification (IEC 60958-3) for
full details.
0001 = Sampling Frequency not indicated.
Clock Accuracy of Transmitted Clock
00 = Level II
01 = Level I
10 = Level III
11 = Interface frame rate not matched to
sampling frequency.
S/PDIF Transmitter Data Source
0 = S/PDIF received data.
1 = Audio Interface received data
S/PDIF Transmitter Channel Status Data
Source
0 = Received channel status data
1 = Transmit channel status registers
Note : Only used if TXSRC=0
Maximum Audio Sample Word Length
0 = 20 bits
1 = 24 bits
Audio Sample Word Length
Used with MAXWL to indicate Tx word length
000 = Word Length Not Indicated
All other combinations reserved
Original Sampling Frequency
Refer to S/PDIF specification (IEC 60958-3) for
full details.
Flags and Status bits available on GPO pins
0000 = INT_N
0001 = V
0010 = U
0011 = C
0100 = TRANS_ERR
0101 = SFRM_CLK
0110 = 192BLK
0111 = UNLOCK
1000 = NON_AUDIO
TXWL[2:0]
001
010
100
101
110
Do not use channel number
Channel Status Bits[23:22]
Do not use channel number
Send to Left Channel
Send to Right Channel
Do not use channel number
DESCRIPTION
MAXWL==1
20 bits
22 bits
23 bits
24 bits
21 bits
PD, Rev 4.5, March 2009
Production Data
MAXWL==0
16 bits
18 bits
19 bits
20 bits
17 bits
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