參數(shù)資料
型號: μPDPD30101
廠商: NEC Corp.
英文描述: 64-Bit Micro[rocessor(64位微處理器)
中文描述: 64位微[rocessor(64位微處理器)
文件頁數(shù): 55/97頁
文件大小: 409K
代理商: ΜPDPD30101
μ
PD30101
54
16. AIU (AUDIO INTERFACE UNIT)
16.1 General
The AIU generates audio signals. It has two preset counters and offers the following two modes:
Buzz mode
A signal with a frequency of M and a duty factor of 50% is output for only the duration of N.
PWM mode
A high level is output from the output pin for only the duration of M and a low level is output for only the duration
of N. By supply data combining M and N at high speeds, PWM of any oversampling is reproduced.
Table 16-1. AIU Registers
Symbol
Function
AIUDATREG
AIU data register
AIURESETREG
AIU reset register
AIUMODEREG
AIU mode register
AIUSEQENREG
AIU sequencer enable register
AIUMUTEREG
AIU output enable register
AIUSTATREG
AIU status register
AIUSTPPAGEREG
Page boundary interrupt enable register
AIUVALIDREG
AIU counter status register
AIUINTREG
AIU interrupt register
AIUCOUNT0REG
AIU counter 0
AIUCOUNT1REG
AIU counter 1
AIUREPNUMREG
Number of PWM repeats setting register
AIUBUSENREG
DMA enable register
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