參數(shù)資料
型號(hào): RC8650L
廠商: Electronic Theatre Controls, Inc.
英文描述: VOICE SYNTHESIZER
中文描述: 語(yǔ)音合成器
文件頁(yè)數(shù): 27/48頁(yè)
文件大?。?/td> 747K
代理商: RC8650L
27
RC8650 VOICE SYNTHESIZER
RC SYSTEMS
Audio Control Register (nN)
The Audio Control Register determines whether the RC8650’s audio
stream will be output as an analog signal on the AO pins or as serial
digital data on the DAOUT pin. See Table 2.10 for the definition of each
register bit. The default register setting is 0N.
In the digital audio modes, data is transferred from the DAOUT pin in
8 bit linear, offset binary format (midscale = 80h). The DARTS# pin can
be used to regulate the flow of data—it must be Low for transfers to
begin. In the synchronous mode, do not attempt to read the data at an
average rate faster than 10 kbytes/sec. At clock rates above 80 kHz
the host must pause between reading each byte in order to keep the
average transfer rate from exceeding 10 kbytes/sec.
Figure 2.1 illustrates the synchronous data transfer mode. Note how
either DARTS# or DACLK can be used to regulate the flow of data
from the RC8650.
Note
Relative parameters work differently than usual with this com-
mand. Instead of specifying a displacement from the register’s
current value, relative parameters allow you to set (“+”) and clear
(“–”) individual register bits. For example, +40N sets bits ACR.3 and
ACR.5; –5N clears ACR.0 and ACR.2.
Table 2.10. Audio Control Register Definitions
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