ST STM32G473 User Manual

Filter math accelerator (FMAC) RM0440
510/2126 RM0440 Rev 4
18.4.6 FMAC status register (FMAC_SR)
Address offset: 0x14
Reset value: 0x0000 0001
Bit 2 OVFLIEN: Enable overflow error interrupts
0: Disabled. No interrupts are generated upon overflow detection.
1: Enabled. An interrupt request is generated if the OVFL flag is set
This bit is set and cleared by software. A read returns the current state of the bit.
Bit 1 WIEN: Enable write interrupt
0: Disabled. No write interrupt requests are generated.
1: Enabled. An interrupt request is generated while the X1 buffer FULL flag is not set.
This bit is set and cleared by software. A read returns the current state of the bit.
Bit 0 RIEN: Enable read interrupt
0: Disabled. No read interrupt requests are generated.
1: Enabled. An interrupt request is generated while the Y buffer EMPTY flag is not set.
This bit is set and cleared by software. A read returns the current state of the bit.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109 8 765432 1 0
Res. Res. Res. Res. Res. SAT UNFL OVFL Res. Res. Res. Res. Res. Res.
X1
FULL
Y
EMPTY
rrr rr
Bits 31:11 Reserved, must be kept at reset value.
Bit 10 SAT: Saturation error flag
Saturation occurs when the result of an accumulation exceeds the numeric range of the
accumulator.
0: No saturation detected
1: Saturation detected. If the SATIEN bit is set, an interrupt is generated.
This flag is cleared by a reset of the unit.
Bit 9 UNFL: Underflow error flag
An underflow occurs when a read is made from FMAC_RDATA when no valid data is
available in the Y buffer.
0: No underflow detected
1: Underflow detected. If the UNFLIEN bit is set, an interrupt is generated.
This flag is cleared by a reset of the unit.
Bit 8 OVFL: Overflow error flag
An overflow occurs when a write is made to FMAC_WDATA when no free space is available
in the X1 buffer.
0: No overflow detected
1: Overflow detected. If the OVFLIEN bit is set, an interrupt is generated.
This flag is cleared by a reset of the unit.

ST STM32G473 Specifications

General

Brand	ST
Model	STM32G473
Category	Microcontrollers
Language	English