CS6403 datasheet(33/54 Pages) CIRRUS

33 / 54 page

GPIN0 - General-purpose input, PIN 31Q, 37L

Refer to Table 5 below.

GPIN1 - General-purpose input, PIN 32Q, 38L

Refer to Table 5 below.

GPIN2 - General-purpose input, PIN 33Q, 39L

Refer to Table 5 below.

GPIN3 - General-purpose input, PIN 2Q, 8L

Disables 26dB microphone gain when high at reset. Controls Mute after reset. See Table 4 for

more details.

GPOUT0 - General-purpose outputs, PIN 34Q, 40L

GPOUT0 is high when a volume change request is made that exceeds the available range.

GPOUT1 - General-purpose outputs, PIN 35Q, 41L

GPOUT1 is high while the CS6403 is in half-duplex mode during initial convergence.

RESET - System reset, PIN 41Q, 3L

RESET must be asserted high for at least two SCLK periods after powerup to place the CS6403

in a known state.

NC - No Connect, PIN 4Q, 10L

NC must be left floating in normal operation.

GPIN2

GPIN1

GPIN0

Move to HD-enable state

Clear coefficients (not debounced)

Don’t care

Move to HD-disable state

Don’t care

Decrease volume one step

Increase volume one step

Move to HD-disable state

Table 5. Algorithmic Controls.

CS6403

DS192PP6

CS6403 Datasheet(PDF) 33 Page - Cirrus Logic