WM8310GEB/V Wolfson Microelectronics, WM8310GEB/V Datasheet - Page 88

• Manufacturer Part Number: WM8310GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 169BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8310GEB/V

• Supply Voltage: 7V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 11
• Digital Ic Case Style: BGA
• No. Of Pins: 169
• No. Of Regulated Outputs: 13
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

WM8310
15.13 POWER MANAGEMENT INTERRUPTS
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Undervoltage monitoring is provided on all DC-DC Converters and LDO Regulators, as described in
Section 15.11. The associated interrupt flags indicate an undervoltage condition in each individual
DC-DC Converter or LDO Regulator. Each of these secondary interrupts triggers a primary
Undervoltage Interrupt, UV_INT (see Section 23). This can be masked by setting the mask bit(s) as
described in Table 43.
Current monitoring is provided on DC-DC1 and DC-DC2, as described in Section 15.11. The interrupt
flags HC_DC1_EINT and HC_DC2_EINT indicate a high current condition in DC-DC1 and DC-DC2
respectively. Each of these secondary interrupts triggers a primary High Current Interrupt, HC_INT
(see Section 23). This can be masked by setting the mask bit(s) as described in Table 43.
The high current thresholds are programmable; these are set by DC1_HC_THR and DC2_HC_THR
for DC-DC1 and DC-DC2 respectively. See Section 15.12.2 for details of these register fields. Note
that these functions are for current monitoring; they do not equate to the DC-DC Converter maximum
current limit.
R16403
(4013h)
Interrupt Status
3
R16404
(4014h)
Interrupt Status
4
R16411
(401Bh)
Interrupt Status
3 Mask
R16412
(401Ch)
Interrupt Status
4 Mask
Notes:
1.
2.
Table 43 Power Management Interrupts
ADDRESS
n is a number between 1 and 10 that identifies the individual LDO Regulator (LDO1 - 10).
m is a number between 1 and 4 that identifies the individual DC-DC Converter (DC-DC1 - 4).
BIT
9:0
3:0
9:0
3:0
9
8
9
8
UV_LDOn_EINT
HC_DC2_EINT
HC_DC1_EINT
UV_DCm_EINT
IM_UV_LDOn_EINT
IM_HC_DC2_EINT
IM_HC_DC1_EINT
IM_UV_DCm_EINT
LABEL
LDOn Undervoltage interrupt
(Rising Edge triggered)
Note: Cleared when a ‘1’ is written.
DC-DC2 High current interrupt
(Rising Edge triggered)
Note: Cleared when a ‘1’ is written.
DC-DC1 High current interrupt
(Rising Edge triggered)
Note: Cleared when a ‘1’ is written.
DC-DCm Undervoltage interrupt
(Rising Edge triggered)
Note: Cleared when a ‘1’ is written.
Interrupt mask.
0 = Do not mask interrupt.
1 = Mask interrupt.
Default value is 1 (masked)
Interrupt mask.
0 = Do not mask interrupt.
1 = Mask interrupt.
Default value is 1 (masked)
Interrupt mask.
0 = Do not mask interrupt.
1 = Mask interrupt.
Default value is 1 (masked)
Interrupt mask.
0 = Do not mask interrupt.
1 = Mask interrupt.
Default value is 1 (masked)
PP, December 2009, Rev 3.0
DESCRIPTION
Pre-Production
88