CS4614 查看數據表（PDF） - Cirrus Logic

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CS4614

CrystalClear™ SoundFusion™ PCI Audio Accelerator

Cirrus Logic 

CS4614

CrystalClear™ SoundFusion™ PCI Audio Accelerator

REQ# - Master Request, Three-State Output, Pin 85

REQ# indicates to the system arbiter that this device is requesting access to the PCI bus. This

pin is high-impedance when RST# is active.

GNT# - Master Grant, Input, Pin 84

GNT# is driven by the system arbiter to indicate to the device that the PCI bus has been

granted.

PERR# - Parity Error, I/O, Pin 24

PERR# is used for reporting data parity errors on the PCI bus.

SERR# - System Error, Open Drain Output, Pin 25

SERR# is used for reporting address parity errors and other catastrophic system errors.

INTA# - Host Interrupt A (for SP), Open Drain Output, Pin 81

INTA# is the level triggered interrupt pin dedicated to servicing internal device interrupt

sources.

PCICLK - PCI Bus Clock, Input, Pin 83

PCICLK is the PCI bus clock for timing all PCI transactions. All PCI synchronous signals are

generated and sampled relative to the rising edge of this clock.

RST# - PCI Device Reset, Pin 82

RST# is the PCI bus master reset.

VDD5REF: Clean 5 V Power Supply, Pin 73

VDD5REF is the power connection pin for the 5 V PCI pseudo supply for the PCI bus drivers.

The internal core logic runs on 3.3 Volts. This pin enables the PCI interface to support and be

tolerant of 5 Volt signals. Must be connected to +5 Volts.

PCIVDD[7:0] - PCI Bus Driver Power Supply, Pins 50, 39, 31, 21, 8, 100, 94, 86

PCIVDD pins are the PCI driver power supply pins. These pins must have a nominal

+3.3 Volts.

PCIGND[7:0] - PCI Bus Driver Ground Pins, Pins 49, 40, 30, 22, 7, 1, 93, 87

PCIGND pins are the PCI driver ground reference pins.

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

DS292PP3

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