VR4102 datasheet(409/701 Pages) NEC

409 / 701 page

409

CHAPTER 20 AIU (AUDIO INTERFACE UNIT)

This chapter describes the AIU’s operations and register settings.

20.1 GENERAL

The AIU supports speaker output and MIC input operations. It is also used to set the A/D and D/A converter

operations.

20.2 REGISTER SET

The AIU registers are listed below.

Table 20-1. AIU Registers

Address

R/W

Function

0x0B00 0160

R/W

MDMADATREG

Mike DMA Data Register

0x0B00 0162

R/W

SDMADATREG

Speaker DMA Data Register

0x0B00 0166

R/W

SODATREG

Speaker Output Data Register

0x0B00 0168

R/W

SCNTREG

Speaker Output Control Register

0x0B00 016A

R/W

SCNVRREG

Speaker Conversion Rate Register

0x0B00 0170

R/W

MIDATREG

Mike Input Data Register

0x0B00 0172

R/W

MCNTREG

Mike Input Control Register

0x0B00 0174

R/W

MCNVRREG

Mike Conversion Rate Register

0x0B00 0178

R/W

DVALIDREG

Data Valid Register

0x0B00 017A

R/W

SEQREG

Sequential Register

0x0B00 017C

R/W

INTREG

Interrupt Register

These registers are described in detail below.

VR4102 Datasheet(PDF) 409 Page - NEC

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