DA7219 Datasheet, PDF (109/123 Pages) Dialog Semiconductor – Audio codec with Advanced Accessory Detect

DA7219
Audio codec with Advanced Accessory Detect
Company confidential
Table 158: TONE_GEN_CFG1 (Page 0: 0x000000B4)
Bit
Mode
Symbol
Description
Reset
7
R/W
start_stopn
Tone Generator stop-start control.
0x0
Setting this bit = 1 starts the Tone Generator for the
number of beeps defined by beep_cycles. Once
complete, the bit is automatically cleared.
If beep_cycles = 111 (continuous), then this bit
must be cleared manually
0 = Tone Generator disabled
1 = Tone Generator enabled
4
R/W
dtmf_en
DTMF control
0x0
3:0
R/W
dtmf_reg
0 = DTMF is disabled. The Tone Generator uses
values in the registers freq1 and freq2 to generate
sine wave(s)
1 = DTMF is enabled. The Tone Generator uses
values from the register dtmf_reg to generate sine-
waves
The DTMF key pad values 0 to 15
0x0
0000 = 0
0001 = 1
0010 = 2
0011 = 3
0100 = 4
0101 = 5
0110 = 6
0111 = 7
1000 = 8
1001 = 9
1010 = A
1011 = B
1100 = C
1101 = D
1110 = *
1111 = #
Datasheet
Revision 2.1
109 of 123
17-Dec -2015
© 2015 Dialog Semiconductor