VR4102 datasheet(418/701 Pages) NEC

418 / 701 page

CHAPTER 20 AIU (AUDIO INTERFACE UNIT)

418

20.2.9 DVALIDREG (0x0B00 0178)

Bit

D15

D14

D13

D12

D11

D10

Name

Reserved

R/W

RRR

RTCRST

Other resets

Bit

D6D5

D4D3D2

Name

Reserved

SODATV

SDMAV

MIDATV

MDMAV

R/W

RTCRST

Other resets

Bit

Name

Function

D[15:4]

Reserved

Write 0 when writing. 0 is returned after a read

D[3]

SODATV

This indicates when valid data has been stored in SODATREG.

1 : Valid data exists

0 : No valid data

D[2]

SDMAV

This indicates when valid data has been stored in SDMADATREG.

1 : Valid data exists

0 : No valid data

D[1]

MIDATV

This indicates when valid data has been stored in MIDATREG.

1 : Valid data exists

0 : No valid data

D[0]

MDMAV

This indicates when valid data has been stored in MDMAREG.

1 : Valid data exists

0 : No valid data

This register indicates when valid data has been stored in SODATREG, SDMADATREG, MIDATREG, or

MDMAREG.

If data has been written directly to SODATREG, SDMADATREG, MIDATREG, or MDMAREG via software, the

bits in this register are not active, so write “1” via software.

Write is used for debugging and is enabled when AIUSEN or AIUMEN bit of SEQREG is set to 1.

If AIUSEN = 0 or AIUMEN = 0 in SEQREG, then SODATV = SDMAV = 0 or MIDATV = MDMAV = 0.

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