CS8416-IS Cirrus Logic, CS8416-IS Datasheet - Page 37

• Manufacturer Part Number: CS8416-IS
• Description: 192 kHZ DIGITAL AUDIO INTERFACE RECEIVER
• Manufacturer: Cirrus Logic

10 HARDWARE MODE
The CS8416 has a hardware mode which allows using the device without a microcontroller. Hardware
mode is selected by connecting the 47K pull-up/down resistor on the SDOUT pin to ground. Various pins
change function in hardware mode, described in the hardware mode pin definition section (Section 11).
Hardware mode data flow is shown in
and routed to the serial audio output port. The decoded C and U bits are also output, clocked at both edges
of OLRCK (master mode only, see
An error in the incoming audio stream will be indicated on the NV/RERR. This pin can be configured in
one of two ways. If RERR is chosen by pulling NV/RERR to ground, the previous audio sample is held
and passed to the serial audio output port if the validity bit is high, or a parity, bi-phase, confidence or PLL
lock error occurs during the current sample. If NVERR is chosen by pulling NV/RERR to VL+, only par-
ity, bi-phase, confidence or PLL lock error cause the previous audio sample to be held.
10.1 Serial Audio Port Formats
In hardware mode, only a limited number of alternative serial audio port formats are available.
fines the equivalent software mode bit settings for each format.
The start-up options, shown in
and the serial audio port format.
DS578PP2
RXP0
RXP1
RXP2
RXP3
RXN
Power supply pins (VA+, VD+, VL+, AGND, DGND, the reset pin (RST) and the PLL filter pin (FILT)
are omitted from the diagram. Please refer to the Typical Connection Diagram for connection details.
RXSEL[1:0] TXSEL[1:0]
RMCK
MUX
AES3 Rx
4:2
Decoder
&
NV/RERR
Table
Figure 13. Hardware Mode Data Flow
96kHz
Figure
4, allow choice of the serial audio output port as a master or slave,
Figure
De-emphasis
9).
AUDIO
Filter
OMCK
13. Audio data is input through the AES3/SPDIF receiver,
RCBL
Output
Serial
Audio
TX
OLRCK
OSCLK
SDOUT
C
U
CS8416
Table 4
de-
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