Electronic Volume Control - Hitachi SH7760 Solution Engine2 Overview

6.12 Electronic Volume Control

This section describes the electronic volume control functions. Table 6.12 summarizes the electronic volume
control registers. For details of each register, refer to 6.12.1 and 6.12.2.
(1) An electronic volume value can be set.
An electronic volume value can be set within a range from 0x00 (minimum sound volume) to 0xFF
(maximum sound volume).
(2) Two electronic volume values can be set.
An electronic volume value can be set for the right or left speaker.
Register
Electronic volume data register for the right
speaker
Electronic volume data register for the left
speaker
6.12.1 Electronic Volume Data Register for the Right Speaker (EVRDR)
Address: 0x00D0 Initial value: 0x00
D7
EVRDR_D7 EVRDR_D6
R/W R/W
Values from 0x00 to 0xFF can be set.
6.12.2 Electronic Volume Data Register for the Left Speaker (EVLDR)
Address: 0x00D1 Initial value: 0x00
D7
EVLRD_D7 EVLRD_D6
R/W R/W
Values from 0x00 to 0xFF can be set.
Table 6.12 Electronic Volume Control Registers
D6 D5
EVRDR_D5 EVRDR_D4
R/W
D6 D5
EVLDR_D5 EVLDR_D4
R/W
Abbreviation Address
EVRDR 0x00D0
EVLDR 0x00D1
D4 D3
EVRDR_D3
R/W R/W
D4 D3
EVLDR_D3
R/W R/W
106
R/W Size
R/W 1 byte
R/W 1 byte
D2 D1
EVRDR_D2 EVRDR_D1
R/W R/W
D2 D1
EVLDR_D2 EVLDR_D1
R/W R/W
D0
EVRDR_D0
R/W
D0
EVLDR_D0
R/W