<28/29> SCSP User's Manual / 4. SCSP Register / 4.3 DSP Memory Control

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SCSP User's Manual / 4.2 Sound Source Register

■ 4.3 DSP memory control register

Delay processing is the basis for DSP effect processing. Delay is realized by storing the input data in memory and reading it with a time lag. This storage area is called a ring buffer.
The ring buffer area can be set with the "RBL" and "RBP" registers according to the number of effect programs used at the same time and the delay time (delay time) of the effect.

RBL [1: 0] (W); Ring Buffer Length

Specifies the length of the ring buffer.

Table 4.34 RBL and ring buffer length

Bit	Buffer length
00B	8K word
01B	16K word
10B	32K word
11B	64K word

RBP [19:13] (W) Ring Buffer (header) Pointer

Specify the start address of the ring buffer. This specification is specified at the 4Kword boundary.

Delay processing is the basis for DSP effect processing. Delay is realized by storing the input data in memory and reading it with a time lag.
This storage area is called a ring buffer. The ring buffer area can be set with the "RBL" and "RBP" registers according to the number of effect programs used at the same time and the delay time (delay time) of the effect.

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