Atmel AT85DVK-07 Spezifikationen PDF herunterladen (Seite 162)

162

AT85C51SND3Bx

7632A–MP3–03/06

Reset Value = 0000 0000b

Table 173. APTIM2 Register

APTIM2 (2.C9h) – Audio Processor Timer Register 2

7 6 5 4 3 2 1 0

APT23 APT22 APT21 APT20 APT19 APT18 APT17 APT16

Bit

Number

Bit

Mnemonic

Description

7-0 APT23:16 Audio Processor Timer Most Significant Byte.

Table 174. APRDVOL, APLDVOL, APBDVOL, APMDVOL, APTDVOL Registers

APRDVOL, APLDVOL, APBDVOL, APMDVOL, APTDVOL (2.F1h, 2.F2h, 2.F3h, 2.F4h,

2.F5h) – Audio Processor Right, Left, Bass, Medium, Treble Digital Volume Registers

7 6 5 4 3 2 1 0

- - - ADVOL4 ADVOL3 ADVOL2 ADVOL1 ADVOL0

Bit

Number

Bit

Mnemonic

Description

6-5 -

Reserved

The value read from these bits is always 0. Do not set these bits.

4-0 ADVOL4:0

Digital Volume

Refer to Table 154 for information on gain control values.

Table 175. APEBS Register

APEBS (2.F6h) - Audio Processor Equalizer Band Select Register

7 6 5 4 3 2 1 0

- - - - 0 EQBS2 EQBS1 EQBS0

Bit

Number

Bit

Mnemonic

Description

7-4 -

Reserved

The value read from these bits is always 0. Do not set these bits.

3 0

Always Cleared

This bit is permanently cleared by hardware to allow INC APEBS without

affecting bits 7-4.

2-0 EQBS2:0

Equalizer Band Selection

000b: lowest frequency band to 111b highest frequency band.

1 2 ... 157 158 159 160 161 162 163 164 165 166 167 ... 262 263

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