Datasheet

TLV320AIC3120
www.ti.com SLAS653A –FEBRUARY 2010–REVISED MAY 2012
Page 0 / Register 71 (0x47): Beep Generator
(1)
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7 R/W 0 0: Beep generator is disabled.
1: Beep generator is enabled (self-clearing based on beep duration).
D6 R/W 0 Reserved. Write only reset value.
D5–D0 R/W 00 0000 00 0000: Beep volume control = 2 dB
00 0001: Beep volume control = 1 dB
00 0010: Beep volume control = 0 dB
00 0011: Beep volume control = –1 dB
...
11 1110: Beep volume control = –60 dB
11 1111: Beep volume control = –61 dB
(1) The beep generator is only available in PRB_P25 DAC processing mode.
Page 0 / Register 72: Reserved
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 0 Reserved.
Page 0 / Register 73 (0x49): Beep Length MSB
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 0000 0000 8 MSBs out of 24 bits for the number of samples for which the beep must be generated.
Page 0 / Register 74 (0x4A): Beep Length Middle Bits
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 0000 0000 8 middle bits out of 24 bits for the number of samples for which the beep must be generated.
Page 0 / Register 75 (0x4B): Beep Length LSB
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 1110 1110 8 LSBs out of 24 bits for the number of samples for which beep need to be generated.
Page 0 / Register 76 (0x4C): Beep Sin(x) MSB
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 0001 0000 8 MSBs out of 16 bits for sin(2π × f
in
/f
S
), where f
in
is the beep frequency and f
S
is the DAC sample rate.
Page 0 / Register 77 (0x4D): Beep Sin(x) LSB
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 1101 1000 8 LSBs out of 16 bits for sin(2π × f
in
/f
S
), where f
in
is the beep frequency and f
S
is the DAC sample rate.
Page 0 / Register 78 (0x4E): Beep Cos(x) MSB
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 0111 1110 8 MSBs out of 16 bits for cos(2π × f
in
/f
S
), where f
in
is the beep frequency and f
S
is the DAC sample rate.
Page 0 / Register 79 (0x4F): Beep Cos(x) LSB
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 1110 0011 8 LSBs out of 16 bits for cos(2π × f
in
/f
S
), where f
in
is the beep frequency and f
S
is the DAC sample rate.
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