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CIRRUS LOGIC PRELIMINARY PRODUCT BULLETIN JUNE 30, 5:03 PM

DS292PP3

CS4614

CrystalClear™ SoundFusion™ PCI Audio Accelerator

Clock / Miscellaneous

CRYVDD - Crystal & PLL Power Supply, Pin 69

Power pin for crystal oscillator and internal phase locked loop. This pin must be connected to a

nominal +3.3 Volts.

CRYGND - Crystal & PLL Ground Supply, Pin 72

Ground pin for crystal oscillator and internal phase locked loop.

JACX, JACY, JBCX, JBCY - Joystick A and B X/Y Coordinates, I/O, Pins 52, 53, 54, 55

These pins are the 4 axis coordinates for the joystick port. These pins may also be used as a

general purpose inputs or open drain outputs if their primary function is not needed.

JAB1/SDO2 - Joystick A Button 1 / Serial Data Output 2, I/O, Pin 56

This dual function pin defaults as JAB1 (button 1 input for joystick A). In non-AC ’97 system

configurations, this pin can function as a second stereo digital data output pin if enabled. This

pin can also be a general purpose polled input if a second data output stream is not required.

JAB2/SDO3 - Joystick A Button 2 / Serial Data Output 3, I/O, Pin 57

This dual function pin defaults as JAB2 (button 2 input for joystick A). In non-AC ’97 system

configurations, this pin can function as a third stereo digital data output pin if enabled. This pin

can also be a general purpose polled input if a third data output stream is not required.

JBB1/LRCLK - Joystick B Button 1 / L/R Framing Clock, I/O, Pin 58

This dual function pin defaults as JBB1 (button 1 input for joystick B). In non-AC ’97 system

configurations, this pin can function as a left/right framing clock output pin for SDO2 and

SDO3. This pin can also be used as a general purpose polled input if alternate data output

streams are not required.

JBB2/MCLK - Joystick B Button 2 / Master Clock, I/O, Pin 59

This dual function pin defaults as JBB2 (button 2 input for joystick B). In non-AC ’97 system

configurations, this pin can function as a master (256x sample rate) output clock if enabled.

This pin can also be used as a general purpose polled input if alternate data output streams are

not required.

MIDIIN - MIDI Data Input, Pin 60

This is the serial input pin for the internal MIDI port.

MIDIOUT - MIDI Data Output, Pin 63

This is the serial output pin for the internal MIDI port.

CVDD[4:0] - Core Power Supply, Pins 68, 64, 61, 12, 19

Core / Stream Processor power pins. These pins must be connected to a nominal +3.3 Volts.