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Product Overview DesignWare DW_apb_i2s Databook
ws change. Serial data sent by the transmitter can be synchronized with either the negative edge or positive
edge of the sclk signal. However, the receiver must latch the serial data on the rising edge of sclk.
Figure 1-4 I
2
S Stereo Frame Format
For more details about the operation of the DW_apb_i2s, refer to “Functional Description” on page 35.
Source code for this component is available on a per-project basis as a DesignWare core; contact your local
sales office for the details.
1.3 Standards Compliance
The DW_apb_i2s component conforms to the AMBA Specification, Revision 2.0 from ARM. Readers are
assumed to be familiar with this specification. DW_apb_i2s also conforms to the I2S Bus Specification from
Philips. For licensing information and to obtain this specification, see the Philips web site:
www.semiconductors.philips.com/acrobat/various/I2SBUS.pdf
1.4 Verification Environment Overview
The DW_apb_i2s includes an extensive verification environment, which sets up and invokes your selected
simulation tool to execute tests that verify the functionality of the configured component. You can then
analyze the results of the simulation.
The “Verification” on page 111 chapter discusses the testbench of DW_apb_i2s.
1.5 Licenses
Before you begin using the DW_apb_i2s, you must have a valid license. For more information, refer to
“Licenses” in the DesignWare Synthesizable Components for AMBA 2/AMBA 3 AXI Installation Guide.
1.6 Where To Go From Here
At this point, you may want to get started working with the DW_apb_i2s component within a subsystem or
by itself. Synopsys provides several tools within its coreTools suite of products for the purposes of
configuration, synthesis, and verification of single or multiple synthesizable IP components—
coreConsultant and coreAssembler. For information on the different coreTools, refer to Guide to coreTools
Documentation.
For more information about configuring, synthesizing, and verifying just your DW_apb_i2s component,
refer to “Overview of the coreConsultant Configuration and Integration Process” on page 22.
SCLK
Left Right
WS
Data
MSB
LSB
MSB
LSB
MSB LSB MSB LSB
sclk
ws
data