wm8352 Wolfson Microelectronics plc, wm8352 Datasheet - Page 282

• Manufacturer Part Number: wm8352
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

REGISTER
WM8352
REGISTER
Register A7h Generic comparator 4
w
ADDRESS
ADDRESS
R168 (A8h)
R167 (A7h)
comparator
Control 1
Charger
Generic
Battery
4
12:10
BIT
15:13
BIT
11:0
15
12
9
8
7
CHG_TRICKLE_TEMP_CHOKE
DCMP4_SRCSEL[2:0]
CHG_TRICKLE_USB_CHOKE
DCMP4_THR[11:0]
CHG_EOC_SEL[2:0]
DCMP4_GT
CHG_RECOVER_T
LABEL
CHG_ENA
LABEL
0000_0000_0000 DCOMP4 threshold
DEFAULT
000
0
DEFAULT
000
1
0
0
0
DCOMP4 source select.
000 = AUX1
001 = AUX2
010 = AUX3
011 = AUX4
100 = USB
101 = LINE
110 = BATT
111 = TEMP
Reset by state machine.
DCOMP4 interrupt control
0 = interrupt when the source is less than
threshold
1 = interrupt when the source is greater
than threshold
(12-bit unsigned binary number)
CHG_ENA bit selects battery charger
current control
0 = Set battery charger current to zero
1 = Enable battery charge control
Protected by security key. Reset by state
machine. Default held in metal mask.
Selects what the end of charge current
should be set to
000 = 20mA
001 = 30mA
...
111 = 90mA
Protected by security key.
Enable trickle charge temperature
choking
0 = disable
1 = enable
Protected by security key. Reset by state
machine.
Enable USB current choking in trickle
charge
0 = disable
1 = enable
Protected by security key. Reset by state
machine.
Time constant adjust for charger choke
recovery (step-up):
0 = Step-up time constant is 180us
(allows faster recovery between
processor wakeups)
1 = Step-up time constant is >20ms
(outside audio band)
(10mA steps)
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
Production Data
282