CS8403A-CS CIRRUS [Cirrus Logic], CS8403A-CS Datasheet - Page 28

• Manufacturer Part Number: CS8403A-CS
• Description: 96KHZ DIGITAL AUDIO TRANSMITTER
• Manufacturer: CIRRUS [Cirrus Logic]

Control Pins
RST - Master Reset, PIN 16.
V - Validity, PIN 9.
U - User Bit, PIN 11.
PRO - Professional/Consumer Select, PIN 2.
C9/C15 - Channel Status Bit 9 / Channel Status Bit 15, PIN 12.
EM0/C9 - Emphasis 0 / Channel Status Bit 9, PIN 14.
EM1/C8 - Emphasis 1 / Channel Status Bit 8, PIN 13.
C7/C3 - Channel Status Bit 7 / Channel Status Bit 3, PIN 1.
C6/C2 - Channel Status Bit 6 / Channel Status Bit 2, PIN 4.
C1/FC0 - Channel Status Bit 1 / Frequency Control 0, PIN 3.
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When low, all internal counters are reset and the line drivers are disabled, pulling low.
Validity bit serial input port. This bit is defined according to the digital audio standards
wherein V=0 signifies the audio signal is suitable for conversion to analog. V=1 signifies the
audio signal is not suitable for conversion to analog, i.e. invalid. V is sampled once per
subframe
User bit serial input port is sampled once per subframe.
Selects between professional mode (PRO low) and consumer mode (PRO high). This pin
defines the functionality of the next seven pins. PRO must be low for Transparent Mode, but
will have no effect on the channel status bits.
In professional mode, C9 is the inverse of channel status bit 9 (bit 1 of byte 1). In consumer
mode, C15 is the inverse of channel status bit 15 (bit 7 of byte 1). C9/C15 are ignored in
Transparent Mode.
In professional mode, EM0 and EM1 encode channel status bits 2, 3, and 4. In consumer mode,
C9 is the inverse of channel status bit 9 (bit 1 or byte 1). EMO/C9 are ignored in Transparent
Mode.
In professional mode, EM0 and EM1 encode channel status bits 2, 3, and 4. In consumer mode,
C8 is the inverse of channel status bit 8 (bit 0 of byte 1). EM1/C8 are ignored in Transparent
Mode.
In professional mode, C7 is the inverse of channel status bit 7. In consumer mode, C3 is the
inverse of channel status bit 3. C7/C3 are ignored in Transparent Mode.
In professional mode, C6 is the inverse of channel status bit 6. In consumer mode, C2 is the
inverse of channel status bit 2. C6/C2 are ignored in Transparent Mode.
In professional mode, C1 is the inverse of channel status bit 1. In consumer mode, FC0 and
FC1 are encoded versions of channel status bits 24 and 25 (bits 0 and 1 of byte 3). When FC0
and FC1 are both high, CD mode is selected. C1/FC0 are ignored in Transparent Mode.
CS8403A CS8404A
DS239PP1