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2. Specifications

The following table shows the specifications of this library.

Table 2.1 Library specifications (1) 
 Item 
 Specifications 
 Remarks 
 Sampling frequency 
 Max 44.1kHz 
 Quantization bit count 
 8bit, 16bit 
 Number of channels 
 Mono, stereo 
 File format 
 AIFF format 
 Designated ADPCM format 1) 
 CD-ROM XA Audio format 2) 
 PCM uncompressed 
 ADPCM compression 
 ADPCM compression 
 CD-ROM format 
 CD-ROM XA Audio format 
 Mode2Form2, 
 Other Model or 
 Mode2Form1 
 Playback mode 
 Memory playback mode (plays data on memory) 
 File playback mode (read from CD) Playback) 
 Stream playback mode (read from CD) 
 3) 
 Use file system 
 Use stream system 
 Function 
 Branch playback, continuous playback, 
 Multi playback (up to 4 simultaneous playback) 
 Specify pause, pause, volume / pan 
 Only one ADPCM 
 Continuous playback time 
 Maximum 1 hour 
 Used Library 
 File System, Stream System, DMA Library, 
 ADPCM Extension Library 
 Specify these links simultaneously with this library 4) 
 Use CPU timer (FRT) 
 This library uses the CPU timer (FRT) with a frequency divider of 128. 
 It is initialized only once in the PCM_Init function. FRT initialization and setting on the user 
 side is prohibited. 
 You can get the value 
 with TIM_FRT_GET_16 
 Sound driver 
 Users make initial settings (68000 reset, sound 
 driver transfer, etc.) in advance. This library issues commands related to 
 for PCM playback (PCM start, stop, parameter 
 change). When a user issues a command, disable interrupts from before the command block is checked until the command setting is completed. 
 See "SATURN SOUND DRIVER Sound Built-in Manual". 
 
 This library and the sound IF 
 library do the same, so as not to destroy other people's commands.

(The table continues on the next page)

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