Cirrus Logic CS35L32 - Manual (Page 41)

DS963F4 41
CS35L32
7.18 Interrupt Mask 3
7.18 Interrupt Mask 3 Address 0x14
R/W
7 6 5 4 3 2 1 0
M_UVLO M_LED2_OPEN M_LED2_SHORT M_LED1_OPEN M_LED1_SHORT M_LOWBAT M_BOOST_CURLIM M_BOOST_OVERROR
Default 1 1 1 1 1 1 1 1
Interrupt mask register bits serve as a mask for the interrupt sources in the interrupt status registers. 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 M_UVLO UVLO mask
0 Unmasked
1 (Default) Masked
6 M_LED2_OPEN LED 2/1 open and shorted masks
0 Unmasked
1 (Default) Masked
5 M_LED2_SHORT
4 M_LED1_OPEN
3 M_LED1_SHORT
2 M_LOWBAT Low battery mask
0 Unmasked
1 (Default) Masked
1 M_BOOST_CURLIM Boost converter masks
0 Unmasked
1 (Default) Masked
0 M_BOOST_OVERROR
7.19 Interrupt Status 1 (Audio) Address 0x15
R/O
7 6 5 4 3 2 1 0
— ADSPCLK_ERR MCLK_ERR AMP_SHORT OTW OTE
Default x x x x x x x x
Interrupt mask register bits serve as a mask for the interrupt sources in the interrupt status registers. 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
7:5 — Reserved
4 ADSPCLK_
ERR
ADSP clock error. Indicates that the ADSP has lost synchronization. See Section 4.11.2 and Section 7.7 for details.
0 (Default) MCLK
INT
-to-LRCK ratio is valid. Valid if f
LRCK
= f
MCLK(INT)
/RATIO
1 MCLK
INT
-to-LRCK ratio is invalid. Set as the ADSP resynchronizes on initial power up and application of clocks.
3 MCLK_
ERR
Master clock error. Indicates the MCLK watchdog status.
0 (Default) MCLK is above ~1.25 MHz.
1 MCLK is below ~1.25 MHz, so the device should be reset (RESET = HIGH
LOW), released from reset (RESET =
LOW HIGH) when a valid MCLK is reapplied, and restarted. If this condition exists, the Class D amplifier
immediately stops switching and the outputs are internally clamped to ground . See Section 4.13.3 .
2 AMP_
SHORT
Amplifier short. Indicates that either of the amplifier outputs (OUT±) is driving a short circuit.
0 (Default) Not shorted
1 Shorted. The device enters Speaker-Safe Mode (see
Section 4.3.4 ). Normal behavior may resume when the short
condition ceases and AMP_SHORT_RLS is sequenced, as described in Section 7.15 .
Note: The circuit feeding this bit requires the amplifier to be fully powered and not in shut-down mode; if it is powered down
(PDN_AMP = 1) or in Speaker-Safe Mode, the detector indicates no short condition, even if speaker outputs are shorted.
1 OTW Overtemperature warning. Indicates that device junction temperature exceeded the set limit, as described in Table 3-3 .
0 (Default) Below set overtemperature warning threshold
1 Above set overtemperature warning threshold
0 OTE Overtemperature error. Indicates whether the device junction temperature exceeded the damage limit.
0 (Default) Below damage limit
1 Above damage limit. The device enters Speaker-Safe Mode (see
Section 4.3.4 ). Normal behavior may resume when
the OTE event ends and OTE_RLS is sequenced, as described in Section 7.15 .