wm8352 Wolfson Microelectronics plc, wm8352 Datasheet - Page 133
wm8352
Manufacturer Part Number
wm8352
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8352.pdf
(335 pages)
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The DC-DC Converters and the LDO Regulators have a first-level interrupt, UV_INT (see
Section 24). This comprises second-level interrupts from each of the DC-DC Converters and the
LDO Regulators.
Each DC-DC Converter has a dedicated second-level interrupt which indicates an under-voltage
condition. These can be masked by setting the applicable mask bit as defined in Table 79.
R28 (1Ch)
Under Voltage
Interrupt Status
R36 (24h)
Under Voltage
Interrupt Mask
Note: there is no over-current fault condition for converters 2 and 5.
Table 79 DC-DC Converter Interrupts
ADDRESS
as in
R28
BIT
5
4
3
2
1
0
UV_DC6_EINT
UV_DC5_EINT
UV_DC4_EINT
UV_DC3_EINT
UV_DC2_EINT
UV_DC1_EINT
“IM_” + name of respective
bit in R28
LABEL
DCDC6 Under-voltage interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
DCDC5 Under-voltage interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
DCDC4 Under-voltage interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
DCDC3 Under-voltage interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
DCDC2 Under-voltage interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
DCDC1 Under-voltage interrupt.
(Rising Edge triggered)
Note: This bit is cleared once read.
Mask bits for DC-DC converter under-
voltage interrupts
Each of these bits masks the respective
bit in R28 when it is set to 1 (e.g.
UV_DC1_EINT in R28 does not trigger a
UV_INT interrupt when
IM_UV_DC1_EINT in R36 is set).
DESCRIPTION
PD, June 2009, Rev 4.1
WM8352
133
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