Sai Xinterrupt Mask Register2(Sai_Xim) Where X Is A Or B - STMicroelectronics STM32F405 Reference Manual

RM0090
29.17.5

SAI xInterrupt mask register2(SAI_xIM) where x is A or B

Address offset: blockA: 0x014
Address offset: block B: 0x034
Reset value: 0x0000 0000
31 30 29 28
15 14 13 12
Bits 31:7 Reserved, always read as 0.
Bit 6 LFSDETIE: Late frame synchronization detection interrupt enable. This bit is set and cleared by
software.
0: Interrupt is disabled
1: Interrupt is enabled
When this bit is set, an interrupt will be generated if the LFSDET bit is set in the SAI_ASR register.
This bit has no meaning in AC'97 mode. It has no meaning also if the audio block is master.
Bit 5 AFSDETIE: Anticipated frame synchronization detection interrupt enable. This bit is set and cleared by
software.
0: Interrupt is disabled
1: Interrupt is enabled
When this bit is set, an interrupt will be generated if the AFSDET bit in the SAI_ASR register is set.
This bit has no meaning in AC'97 mode. It has no meaning also if the audio block is master.
Bit 4 CNRDYIE: Codec not ready interrupt enable (ac'97). This bit is set and cleared by software.
0: Interrupt is disabled
1: Interrupt is enabled
When the interrupt is enabled, the audio block will detect in the slot 0 (tag0) of the AC'97 frame if the
codec connected on this line is ready or not. If not, the flag CNRDY in the SAI_ASR register will be
set and an interruption will be generated.
This bit has a meaning only if the AC97 mode is selected (bit PRTCFG[1:0]) and the audio block is a
receiver.
Bit 3 FREQIE: FIFO request interrupt enable. This bit is set and cleared by software.
0: Interrupt is disabled
1: Interrupt is enabled
When this bit is set, an interrupt will be generated if the FREQ bit in the SAI_ASR register is set.
In receiver mode, the bit MODE must be configured before setting bit FREQIE to avoid a parasitic
interruption since the audio block is a transmitter (default setting).
27 26 25 24
11 10 9 8
Reserved
DocID018909 Rev 11
23 22 21
Reserved
7 6 5
LFSDETI AFSDET
E IE
rw rw
Serial audio interface (SAI)
20 19 18 17
4 3 2 1
MUT
CNRDY FREQI WCKC
EDET
IE E FGIE
IE
rw rw rw rw
16
0
OVRU
DRIE
rw
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