WM8310 Datasheet, PDF (102/291 Pages) Wolfson Microelectronics plc – Processor Power Management Subsystem

WM8310
Pre-Production
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R16463
(404Fh)
Current Sink 2
11:10 CS2_OFF_RA
MP
01
ISINK2 Switch-Off ramp
00 = instant (no ramp)
01 = 1 step every 4ms (220ms)
10 = 1 step every 8ms (440ms)
11 = 1 step every 16ms (880ms)
The time quoted in brackets is valid for
the maximum change in current drive
setting. The actual time scales
according to the extent of the change in
current drive setting.
9:8 CS2_ON_RAM
P
01
ISINK2 Switch-On ramp
00 = instant (no ramp)
01 = 1 step every 4ms (220ms)
10 = 1 step every 8ms (440ms)
11 = 1 step every 16ms (880ms)
The time quoted in brackets is valid for
the maximum change in current drive
setting. The actual time scales
according to the extent of the change in
current drive setting.
Table 50 Configuring On/Off Ramp Timing for ISINK1 and ISINK2
16.3 CURRENT SINK INTERRUPTS
The Current Sinks are associated with two Interrupt event flags, which indicate if the Current Sinks
are unable to sink the demanded current (eg. if the power source is too low or if the load is open
circuit). Each of these secondary interrupts triggers a primary Current Sink Interrupt, CS_INT (see
Section 23). This can be masked by setting the mask bit(s) as described in Table 51.
ADDRESS
R16402
(4012h)
Interrupt Status
2
BIT
LABEL
7
CS2_EINT
6
CS1_EINT
R16410
(401Ah)
7
IM_CS2_EINT
Interrupt Status
2 Mask
6
IM_CS1_EINT
Table 51 Current Sink Interrupts
DESCRIPTION
Current Sink 2 interrupt
(Rising Edge triggered)
Note: Cleared when a ‘1’ is written.
Current Sink 1 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)
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PP, May 2012, Rev 3.1
102