wm8580a Wolfson Microelectronics plc, wm8580a Datasheet - Page 64

• Manufacturer Part Number: wm8580a
• Description: Multichannel Codec With S/pdif Transceiver
• Manufacturer: Wolfson Microelectronics plc

WM8580
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Table 60 S/PDIF Transmitter Channel Status Bit Control 5
SPDTXCHAN 5
REGISTER
ADDRESS
R35
23h
BIT
3:1
7:4
0
S/PDIF RECEIVER
INPUT SELECTOR
The S/PDIF receiver has one dedicated input, SPDIFIN1. This pin is a IEC-60958-3-compatible
comparator input by default or, if SPDIFIN1MODE is set, the pin will be a CMOS-compatible input.
There are three other pins which can be configured as either S/PDIF inputs or general purpose
outputs (GPOs). The four S/PDIF inputs are multiplexed to allow one input to go to the S/PDIF
receiver for decoding. The S/PDIF receiver can be powered down using the SPDIFRXD register bit.
ORGSAMP
TXWL[2:0]
MAXWL
LABEL
[3:0]
STATUS BIT
CHANNEL
35:33
39:36
32
DEFAULT
0000
101
1
Maximum Audio sample word length
0 = 20 bits
1 = 24 bits
Audio Sample Word Length.
000 = Word Length Not Indicated
All other combinations reserved
Original Sampling Frequency. See S/PDIF
specification for details.
0000 = original sampling frequency not
indicated
TXWL[2:0]
001
010
100
101
110
DESCRIPTION
MAXWL==1
20 bits
22 bits
23 bits
24 bits
21 bits
PD, Rev 4.7, March 2009
Production Data
MAXWL==0
16 bits
18 bits
19 bits
20 bits
17 bits
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