ST STM32L4x6 User Manual

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RM0351 Digital-to-analog converter (DAC)
573
17.5 DAC registers
Refer to Section 1 on page 61 for a list of abbreviations used in register descriptions.
The peripheral registers have to be accessed by words (32-bit).
17.5.1 DAC control register (DAC_CR)
Address offset: 0x00
Reset value: 0x0000 0000
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. CEN2
DMAU
DRIE2
DMA
EN2
MAMP2[3:0] WAVE2[1:0] TSEL2[2:0] TEN2 Res. EN2
rw rw rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
Res. CEN1
DMAU
DRIE1
DMA
EN1
MAMP1[3:0] WAVE1[1:0] TSEL1[2:0] TEN1 Res. EN1
rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bit 31 Reserved, must be kept at reset value
Bit 30 CEN2: DAC Channel 2 calibration enable
This bit is set and cleared by software to enable/disable DAC channel 2 calibration, it can be
written only if bit EN2=0 into DAC_CR (the calibration mode can be entered/exit only when
the DAC channel is disabled) Otherwise, the write operation is ignored.
0: DAC channel 2 in normal operating mode
1: DAC channel 2 in calibration mode
Bit 29 DMAUDRIE2: DAC channel2 DMA underrun interrupt enable
This bit is set and cleared by software.
0: DAC channel2 DMA underrun interrupt disabled
1: DAC channel2 DMA underrun interrupt enabled
Bit 28 DMAEN2: DAC channel2 DMA enable
This bit is set and cleared by software.
0: DAC channel2 DMA mode disabled
1: DAC channel2 DMA mode enabled
Bits 27:24 MAMP2[3:0]: DAC channel2 mask/amplitude selector
These bits are written by software to select mask in wave generation mode or amplitude in
triangle generation mode.
0000: Unmask bit0 of LFSR/ triangle amplitude equal to 1
0001: Unmask bits[1:0] of LFSR/ triangle amplitude equal to 3
0010: Unmask bits[2:0] of LFSR/ triangle amplitude equal to 7
0011: Unmask bits[3:0] of LFSR/ triangle amplitude equal to 15
0100: Unmask bits[4:0] of LFSR/ triangle amplitude equal to 31
0101: Unmask bits[5:0] of LFSR/ triangle amplitude equal to 63
0110: Unmask bits[6:0] of LFSR/ triangle amplitude equal to 127
0111: Unmask bits[7:0] of LFSR/ triangle amplitude equal to 255
1000: Unmask bits[8:0] of LFSR/ triangle amplitude equal to 511
1001: Unmask bits[9:0] of LFSR/ triangle amplitude equal to 1023
1010: Unmask bits[10:0] of LFSR/ triangle amplitude equal to 2047
≥ 1011: Unmask bits[11:0] of LFSR/ triangle amplitude equal to 4095

ST STM32L4x6 Specifications

General

Brand	ST
Model	STM32L4x6
Category	Microcontrollers
Language	English