CS35L32 Datasheet, PDF (42/51 Pages) Cirrus Logic – Boosted Class D Amplifier with Speaker-Protection Monitoring and Flash LED Drivers

CS35L32
7.20 Interrupt Status 2 (Monitors)
7.20 Interrupt Status 2 (Monitors)
Address 0x16
R/O
7
6
5
4
VMON_OVFL IMON_OVFL VPMON_OVFL
3
2
—
1
0
PDN_DONE
Default
x
x
x
x
x
x
x
x
Interrupt status bits are read only and sticky. Interrupts are described in Section 4.2. Registers at addresses 0x14–0x17 must not be part of a
control-port autoincremented read and must be read individually. See Section 4.14.1.
Bits
Name
Description
7 VMON_OVFL xMON overflow. Indicates the overrange status in the VMON, IMON, or VPMON ADC signal path
6
IMON_OVFL
0 (Default) No clipping has occurred anywhere in the ADC signal path
1 Clipping has occurred in the ADC signal path
5 VPMON_OVFL _{The programming of IMON_SCALE may cause IMON_OVFL to be set.}
4:1
—
Reserved
0 PDN_DONE Power-down done. Indicates whether the CS35L32 has completely powered down and MCLK can be stopped.
0 Not completely powered down. PDN_DONE = 0 if any blocks require MCLK_INT. After powering down using
PDN_ALL or discrete power-down bits, the CS35L32 transitions to a powered-down state, after which, PDN_
DONE is set and MCLK_INT can be removed.
1 (Default) Powered down
7.21 Interrupt Status 3 (LEDs and Boost Converter)
Address 0x17
R/O
7
UVLO
6
5
4
3
2
1
0
LED2_OPEN LED2_SHORT LED1_OPEN LED1_SHORT LOWBAT BOOST_CURLIM BOOST_OVERROR
Default
x
x
x
x
x
x
x
x
Interrupt status bits are read only and sticky. Interrupts are described in Section 4.2. Registers at addresses 0x14–0x17 must not be part of a
control-port autoincremented read and must be read individually. See Section 4.14.1.
Bits
Name
Description
7
UVLO
UVLO event
0 (Default) No lockout
1 UVLO detected at VP. IC shutdown.
6 LED2_OPEN LED 2 open
0 (Default) No open detected
1 Open detected
5 LED2_SHORT LED 2 shorted
0 (Default) No short detected
1 short detected
4 LED1_OPEN LED 1 open
0 (Default) No open detected
1 Open detected
3 LED1_SHORT LED 1 shorted
0 (Default) No short detected
1 Short detected
2
LOWBAT
Battery voltage (VP) is low. This bit is updated only during an active Flash LED event. Reads to clear this bit between any
two sequential Flash Events are not be reflected in the status register until the next active Flash Event is triggered.
0 (Default) Battery voltage normal (above LOWBAT_TH, see Section 7.8)
1 Battery voltage low (below LOWBAT_RECOV, see Section 7.8)
1 BOOST_CURLIM Boost converter in current limit
0 (Default) Not in current limit
1 Boost current has exceeded level programmed in BST_IPK
0
BOOST_
Boost converter overvoltage error
OVERROR
0 (Default) No overvoltage
1 Overvoltage
42
DS963F5