WM8352 datasheet(205/336 Pages) WOLFSON

205 / 336 page

Production Data

WM8352

PD, February 2011, Rev 4.4

205

24.3.9

SYSTEM INTERRUPTS

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

151.

ADDRESS

BIT

LABEL

DESCRIPTION

R26 (1Ah)

Interrupt Status

SYS_HYST_COMP_FAIL_EI

Hysteresis comparator indication that

LINE or BATT is less that shutdown

threshold.

(Rising Edge triggered)

Note: This bit is cleared once read.

SYS_CHIP_GT115_EINT

Chip over 115°C temp limit.

(Rising Edge triggered)

Note: This bit is cleared once read.

SYS_CHIP_GT140_EINT

Chip over 140°C temp limit.

(Rising Edge triggered)

Note: This bit is cleared once read.

SYS_WDOG_TO_EINT

Watchdog timeout has occurred.

(Rising Edge triggered)

Note: This bit is cleared once read.

R34 (22h)

Interrupt Status

2 Mask

3:0

“IM_” + name of respective

bit in R26

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).

Table 151 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 152.

ADDRESS

BIT

LABEL

DESCRIPTION

R25 (19h)

Interrupt Status

CHG_BATT_HOT_EINT

Battery temp too hot.

(Rising Edge triggered)

Note: This bit is cleared once read.

CHG_BATT_COLD_EINT

Battery temp too cold.

(Rising Edge triggered)

Note: This bit is cleared once read.

CHG_BATT_FAIL_EINT

Battery fail.

(Rising Edge triggered)

Note: This bit is cleared once read.

CHG_TO_EINT

Charger timeout.

(Rising Edge triggered)

Note: This bit is cleared once read.

CHG_END_EINT

Charging final stage.

(Rising Edge triggered)

Note: This bit is cleared once read.

CHG_START_EINT

Charging started.

(Rising Edge triggered)

Note: This bit is cleared once read.

CHG_FAST_RDY_EINT

Indicates that the charger is ready to go

into fast charge.

(Rising Edge triggered)

Note: This bit is cleared once read.

WM8352 Datasheet(PDF) 205 Page - Wolfson Microelectronics plc

WM8352 Datasheet(HTML) 205 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL