CRD42L51 Cirrus Logic Inc, CRD42L51 Datasheet - Page 63

• Manufacturer Part Number: CRD42L51
• Description: Ref Bd Low-voltage Stereo Codec
• Manufacturer: Cirrus Logic Inc

DS679F1
6.15
Note: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
OFFTIME2
7
Function:
The frequency of the beep signal can be adjusted from 260.87 Hz to 2181.82 Hz. Beep frequency will scale
directly with sample rate, Fs, but is fixed at the nominal Fs within each speed mode. Refer to
page 36
Beep On Time Duration (ONTIME[3:0])
Default: 0000
Function:
The on-duration of the beep signal can be adjusted from approximately 86 ms to 5.2 s. The on-duration will
scale inversely with sample rate, Fs, but is fixed at the nominal Fs within each speed mode. Refer to
15 on page 36
Beep Off Time & Volume (Address 13h)
Beep Off Time (OFFTIME[2:0])
Default: 000
FREQ[3:0]
OFFTIME[2:0]
TIME[3:0]
0101
1000
1001
1010
0110
0111
1011
1100
1101
1110
1111
0000
1111
000
001
010
011
100
101
···
OFFTIME1
for single, multiple and continuous beep configurations using the REPEAT and BEEP bits.
6
Fs = 12, 24, 48 or 96
for single-, multiple- and continuous-beep configurations using the REPEAT and BEEP bits.
Frequency
1000.00 Hz
1043.48 Hz
1200.00 Hz
1333.33 Hz
1411.76 Hz
1600.00 Hz
1714.29 Hz
2000.00 Hz
2181.82 Hz
Fs = 12, 24, 48 or
774.19 Hz
888.89 Hz
Fs = 12, 24, 48 or 96 kHz
kHz
OFFTIME0
Off Time
96 kHz
1.23 s
2.58 s
3.90 s
5.20 s
6.60 s
8.05 s
5
On Time
86 ms
5.2 s
···
Pitch
BPVOL4
G5
C6
D6
G6
C7
A5
B5
E6
F6
A6
B6
4
BPVOL3
3
BPVOL2
2
BPVOL1
1
CS42L51
Figure 15 on
BPVOL0
0
Figure
63