CS4614-CM View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS4614-CM Datasheet PDF : 24 Pages
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CS4614
CrystalClear™ SoundFusion™ PCI Audio Accelerator
CS4614
ABITCLK
ASYNC
ASDOUT
ASDIN
ARST#
12.288 MHz
48 kHz
24.576 MHz
BIT_CLK
SYNC
SDATA_OUT
SDATA_IN
RESET#
CS4297
MIDIIN
MIDIOUT
JACX, JACY, JBCX, JBCY
JAB1, JAB2, JBB1, JBB2
Joystick/
MIDI Port
Figure 9. AC ‘97 Codec Connection Diagram
for the serial digital audio ports varies depending
on the configuration. The primary configuration in-
cludes a CS4614 plus a CS4297.
The CS4614 communicates with the CS4297 over
the AC-link as specified in the Intel® Audio Codec
‘97 Specification (version 1.03) with support for
the 2.0 extensions. A block diagram for the AC’97
Controller configuration is given in Figure 7. The
signal connections between the CS4614 and the
AC ’97 Codec are indicated in Figure 9. In this
configuration, the AC ’97 Codec is the timing mas-
ter for the digital audio link. The ASDOUT output
supports data transmission on all ten possible sam-
ple slots (output slots 3 - 12). The ASDIN input
supports receiving of audio sample data on all input
sample slots (input slots 3 - 12). The SDO2 and
SDO3 serial outputs are not supported in this con-
figuration.
MIDI Port
In the AC ’97 controller configuration, a bi-direc-
tional MIDI interface is provided to allow connec-
tion of external MIDI devices. The MIDI interface
includes 16-byte FIFOs for the MIDI transmit and
receive paths.
Joystick Port
In the AC ’97 controller configuration, a joystick
port is provided. The joystick port supports four
“coordinate” channels and four “button” channels.
The coordinate channels provide joystick position-
al information to the host, and the button channels
provide user button event information. The joystick
interface is capable of operating in the traditional
“polled” mode, but also provides a “hardware ac-
celerated” mode of operation wherein internal
counters are provided to assist the host with coordi-
nate position determination. The Joystick schemat-
ic is illustrated in Figure 10.
DS292PP3
CIRRUS LOGIC PRELIMINARY PRODUCT BULLETIN JUNE 30, 5:03 PM
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