USBB17AP77016-XXX-B11 NEC Electronics, USBB17AP77016-XXX-B11 Datasheet - Page 34

• Manufacturer Part Number: USBB17AP77016-XXX-B11
• Description: DSP middleware(WMA (Windows Media Audio)decoder)
• Manufacturer: NEC Electronics

4.1
4.2
34
The decode processing can be simulated by using the sample program and sample timing files.
[Example of software environment]
• High-speed simulator: HSM77016 Ver.2.32 or later
• Sample program: sample.lnk (program created in 3.2 Sample Creation Procedure)
• Timing files: smp_input.tmg, smp_serout.tmg, clk_for_2ch.tmg
• Input data file: xxx.dat (see 4.2 Input Data File Creation for how to create this file)
• Model file: uPD77113.model (model file used when sample program was created)
An input data file is required to perform simulation. Create the input data file following the procedure shown below.
(1) Prepare arbitrary WMA data (binary format).
(2) Convert the prepared WMA data into a text file. In this text file, describe two bytes of WMA data per line in
Environment Required for Simulation Using Timing Files
Input Data File Creation
order from the start of the data.
WMA data (binary format)
Offset from start [bytes]
MSB
Input data text file
(text format)
0x9ABC
0x1234
0x5678
:
:
CHAPTER 4 SYSTEM EXAMPLE
0x12 0x34
LSB
0
Figure 4-1. Input Data File
User’s Manual U15683EJ1V0UM
0x56 0x78 0x9A 0xBC
4
8
12