CS4614 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS4614 Datasheet PDF : 24 Pages
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CS4614
CrystalClear™ SoundFusion™ PCI Audio Accelerator
External Interface Pins
TEST - Test Mode Strap, Input, Pin 51
This pin is sampled at reset for test mode entry. If it is high at reset, test mode is enabled. This
pin must be pulled to ground for normal operation.
EEDAT/PCGNT# - EEPROM Data Line / PC/PCI Grant, I/O, Pin 80
For expansion card designs, this is the data line for external serial EEPROM containing device
configuration data. When used with an external EEPROM, a 4.7 kΩ pullup resistor is required.
In motherboard designs using PC/PCI, this pin is the PC/PCI serialized grant input. In designs
with neither of the above requirements, this pin can be used as a general purpose input or open
drain output (GPIO2).
EECLK/PCREQ# - EEPROM Clock Line / PC/PCI Request, Output, Pin 79
For expansion card designs, this is the clock line for external serial EEPROM containing device
configuration data. In motherboard designs using PC/PCI, this pin is the PC/PCI serialized
request output. In designs with neither of the above requirements, this pin can be used as a
general purpose output pin (GPOUT).
SDIN2/GPIO - Serial Data Input 2 / General Purpose I/O Pin, I/O, Pin 66
This dual function pin defaults as a general purpose I/O pin. In non-AC ’97 system
configurations, this pin can function as a second stereo digital data input pin if enabled.
VOLUP/XTALI - Volume-Up Button / Crystal In, Input, Pin 70
This dual function pin is either the volume-up button control input or the crystal oscillator input
pin, depending on system configuration. This pin may also be used as a general purpose input
if its primary function is not needed.
VOLDN/XTALO - Volume-Down Button / Crystal Output, I/O, Pin 71
This dual function pin is either the volume-down button control input or the crystal oscillator
output pin, depending on system configuration. This pin may also be used as a general purpose
input if its primary function is not needed.
DS292PP3
CIRRUS LOGIC PRELIMINARY PRODUCT BULLETIN JUNE 30, 5:03 PM
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