wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 136

• Manufacturer Part Number: wm8350
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8350
w
The status of the DC-DC Converters can be indicated and monitored externally via a GPIO pin
configured as /VCC_FAULT (see Section 20). When a GPIO pin is configured as /VCC_FAULT
output, a logic low level on this pin indicates that there is a fault condition on one of the LDO
Regulators, DC-DC Converters, or the Current Limit switch.
The /VCC_FAULT output is configurable by the control fields in Register R215. The fields described
in Table 80 determine which of the DC-DCs contribute to the /VCC_FAULT indication. An
undervoltage or overvoltage condition on any unmasked DC-DC Converter will cause the
/VCC_FAULT output to be set to logic low.
R215 (D7h)
VCC_FAULT
Table 80 DC Converter /VCCFAULT Mask Bits
ADDRESS
BIT
5
4
3
2
1
0
DC6_FAULT
DC5_FAULT
DC4_FAULT
DC3_FAULT
DC2_FAULT
DC1_FAULT
LABEL
DEFAULT
0
0
0
0
DCDC6 fault mask for the
/VCC_FAULT
0 = don't mask converter fault
1 = mask converter fault
DCDC5 fault mask for the
/VCC_FAULT
0 = don't mask converter fault
1 = mask converter fault
DCDC4 fault mask for the
/VCC_FAULT
0 = don't mask converter fault
1 = mask converter fault
DCDC3 fault mask for the
/VCC_FAULT
0 = don't mask converter fault
1 = mask converter fault
DCDC2 fault mask for the
/VCC_FAULT
0 = don't mask converter fault
1 = mask converter fault
DCDC1 fault mask for the
/VCC_FAULT
0 = don't mask converter fault
1 = mask converter fault
DESCRIPTION
PD, June 2009, Rev 4.1
Production Data
136