DA7219 Datasheet, PDF (63/123 Pages) Dialog Semiconductor – Audio codec with Advanced Accessory Detect

DA7219
Audio codec with Advanced Accessory Detect
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Table 49: ACCDET_CONFIG_1 (Page 0: 0x000000C6)
Bit
Mode
Symbol
Description
7
R/W
pin_order_det_en
Controls detection of the pin order on insertion of a
4-pole jack
Reset
0x1
0 = Pin order is determined by the setting of the
pin_order_force register field when jack_type_sts =
4-pole
1 = Pin order detection ( LRGM / LRMG ) runs on
insertion of a 4-pole Jack
6
R/W
jack_type_det_en
Controls detection of the type of jack (3-pole without 0x1
a mic or 4-pole with a mic) when a jack is inserted
0 = The type of jack (3-pole or 4-pole) is determined
by the setting of the jack_type_force register field
1 = Jack type detection runs on jack insertion to
determine Jack Type (3-pole with no mic, or 4-pole
with a mic)
5:4
R/W
mic_det_thresh
Impedance threshold for MIC detection
0x1
measurement.
If SLEEVE to RING2 impedance is below the
threshold specified here, jack_type_sts is set to 0
(3-pole). If SLEEVE to RING2 impedance is above
the threshold specified here, jack_type_sts is set to
1 (4-pole).
3:1
R/W
button_config
00 = 200 Ω
01 = 500 Ω (default)
10 = 750 Ω
11 = 1000 Ω
Specifies the time between the periodic button-
0x3
press measurements when jack_type_sts = 1 (4-
Pole).
000 = Disabled
001 = 2 ms
010 = 5 ms
011 = 10 ms (default)
100 = 50 ms
101 = 100 ms
110 = 200 ms
111 = 500 ms
0
R/W
accdet_en
Controls Accessory Detection
0x0
0 = Accessory Detection is disabled
1 = Accessory Detection is enabled
The ACCDET analogue components require master
bias to be enabled before enabling the digital block
Datasheet
Revision 2.1
63 of 123
17-Dec -2015
© 2015 Dialog Semiconductor