wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 205
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wm8351
Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8351.pdf
(328 pages)
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24.3.9
The first-level SYS_INT interrupt comprises four second-level interrupts for various system events.
Each of these has a status bit in Register R26 and a mask bit in Register R34, as defined in Table
150.
R26 (1Ah)
Interrupt Status
2
R34 (22h)
Interrupt Status
2 Mask
Table 150 System Interrupts
24.3.10 CHARGER INTERRUPTS
The system interrupt CHG_INT interrupt comprises several second-level interrupts for the battery
charger. Each of these has a status bit in Register R25 and a mask bit in Register R33, as defined in
Table 151.
R25 (19h)
Interrupt Status
1
ADDRESS
ADDRESS
SYSTEM INTERRUPTS
BIT
BIT
3:0
15
14
13
12
11
10
9
3
2
1
0
SYS_HYST_COMP_FAIL_EI
NT
SYS_CHIP_GT115_EINT
SYS_CHIP_GT140_EINT
SYS_WDOG_TO_EINT
“IM_” + name of respective
bit in R26
CHG_BATT_HOT_EINT
CHG_BATT_COLD_EINT
CHG_BATT_FAIL_EINT
CHG_TO_EINT
CHG_END_EINT
CHG_START_EINT
CHG_FAST_RDY_EINT
LABEL
LABEL
Hysteresis comparator indication that
LINE or BATT is less that shutdown
threshold.
(Rising Edge triggered)
Note: This bit is cleared once read.
Chip over 115°C temp limit.
(Rising Edge triggered)
Note: This bit is cleared once read.
Chip over 140°C temp limit.
(Rising Edge triggered)
Note: This bit is cleared once read.
Watchdog timeout has occurred.
(Rising Edge triggered)
Note: This bit is cleared once read.
Interrupt mask.
0 = Do not mask interrupt.
1 = Mask interrupt.
Each bit in R34 enables or masks the
corresponding bit in R26 The default value
for these bits is 0 (unmasked).
Battery temp too hot.
(Rising Edge triggered)
Note: This bit is cleared once read.
Battery temp too cold.
(Rising Edge triggered)
Note: This bit is cleared once read.
Battery fail.
(Rising Edge triggered)
Note: This bit is cleared once read.
Charger timeout.
(Rising Edge triggered)
Note: This bit is cleared once read.
Charging final stage.
(Rising Edge triggered)
Note: This bit is cleared once read.
Charging started.
(Rising Edge triggered)
Note: This bit is cleared once read.
Indicates that the charger is ready to go
into fast charge.
(Rising Edge triggered)
Note: This bit is cleared once read.
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
WM8351
205
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