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address_offset : 0x0 Bytes (0x0)
size : 0x14 byte (0x0)
mem_usage : registers
protection :
DPWM and DAC Control Register
address_offset : 0x0 Bytes (0x0)
size : -1 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
MODUFRQ : DPWM Modulation Frequency.
bits : 0 - 2 (3 bit)
access : read-write
DEADTIME : DPWM Driver Deadtime Control.
Enabling this bit will insert an additional clock cycle deadtime into the switching of PMOS and NMOS driver transistors.
bits : 3 - 3 (1 bit)
access : read-write
DITHEREN : DPWM Signal Dither Control
To prevent structured noise on PWM output due to DC offsets in the input signal it is possible to add random dither to the PWM signal. These bits control the dither:
0: No dither.
1: ±1 bit dither
3: ±2 bit dither
bits : 4 - 5 (2 bit)
access : read-write
DPWMEN : DPWM Enable.
1: Enable DPWM, SPK pins are enabled and driven, data is taken from FIFO.
0: Disable DPWM, SPK pins are tri-state, CIC filter is reset, FIFO pointers are reset (FIFO data is not reset).
Note : This field will be effective only when DAC_EN field in this register is set as 0 .
bits : 6 - 6 (1 bit)
access : read-write
CLIPIE : Read data in DATA[31:0] clipped within 0x0000-7fff ~ 0xffff-8000
Read operation of this register will get clipped data in DATA[31:0] register but
clipped with the range : 0x00 ~ 7fff ~ 0x ffff ~8000. The content of DATA[31:0]
will not be change.
bits : 7 - 7 (1 bit)
access : read-write
RXTHIE : DPWM FIFO threshold interrupt
1: DPWM FIFO threshold interrupt Enabled.
0: DPWM FIFO threshold interrupt Disabled.
bits : 8 - 8 (1 bit)
access : read-write
RXTH : DPWM FIFO threshold
If the valid data count of the DPWM FIFO buffer is less than or equal to RXTH setting, the RXTHF bit will set to 1, else the RXTHF bit will be cleared to 0.
bits : 9 - 12 (4 bit)
access : read-write
ZCIE : Zero cross enable
0: output data doesn't cross zero point
1: output data cross zero point
bits : 14 - 14 (1 bit)
access : read-write
DAC_EN : DAC ENABLE
0 --- DAC function disable
1 --- DAC function enable
bits : 16 - 16 (1 bit)
access : read-write
DAC_EN_10BIT : DAC ENABLE 10Bit
0 --- 13 Bit mode
1 --- 10 bit mode, don't use lower 3BITs
bits : 17 - 17 (1 bit)
access : read-write
DAC_PD : DAC POWER DOWN
0 --- power on DAC13B
1 --- power down DAC13B
bits : 18 - 18 (1 bit)
access : read-write
DACBUFBYPASS : DAC BUFFER BYPASS
0 --- disable BYPASS DAC BUFFER
1 --- enable BYPASS DAC BUFFER
bits : 19 - 19 (1 bit)
access : read-write
DACBUF_PD : DAC BUFFER POWER DOWN
0 --- power on DAC BUFFER
1 --- power off DAC BUFFER
bits : 20 - 20 (1 bit)
access : read-write
DAC_INSEL : DAC input data selection
0 --- DATA from CIC and GAIN output
1 --- DATA from FIFO output
bits : 21 - 21 (1 bit)
access : read-write
DPWM and DAC Zero Order Hold Division Register
address_offset : 0x10 Bytes (0x0)
size : -1 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
ZOH_DIV : DPWM Zero Order Hold, down-sampling divisor.
The input sample rate of the DPWM is set by HCLK frequency and the divisor set in this register by the following formula:
Valid range is 1,..,255. Default is 48, which gives a sample rate of 16kHz for a 49.152MHz (default) HCLK.
bits : 0 - 7 (8 bit)
access : read-write
GAIN : (GAIN[7:0]+1)/256, GAIN≠0
bits : 8 - 15 (8 bit)
access : read-write
DAC_DIV : DAC clock divider
DAC data sample rate is set by this divider
bits : 16 - 21 (6 bit)
access : read-write
DPWM and DAC FIFO Status Register
address_offset : 0x4 Bytes (0x0)
size : -1 bit
access : read-only
reset_value : 0x0
reset_Mask : 0x0
FULL : FIFO Full
bits : 0 - 0 (1 bit)
access : read-only
Enumeration:
#0 : 0
FIFO is not full
#1 : 1
FIFO is full
End of enumeration elements list.
EMPTY : FIFO Empty
bits : 1 - 1 (1 bit)
access : read-only
Enumeration:
#0 : 0
FIFO is not empty
#1 : 1
FIFO is empty
End of enumeration elements list.
RXTHF : DPWM FIFO threshold Interrupt Status (Read Only)
bits : 2 - 2 (1 bit)
access : read-only
Enumeration:
#0 : 0
The valid data count within the DPWM FIFO buffer is larger than the setting value of RXTH
#1 : 1
The valid data count within the transmit FIFO buffer is less than or equal to the setting value of RXTH
End of enumeration elements list.
FIFO_POINTER : DPWM FIFO Pointer (Read Only)
The FULL bit and FIFO_POINTER[3:0] indicates the field that the valid data count within the DPWM FIFO buffer.
The Maximum value shown in FIFO_POINTER is 15. When the using level of DPWM FIFO Buffer equal to 16, The FULL bit is set to 1.
bits : 3 - 6 (4 bit)
access : read-only
DPWM and DAC PDMA Control Register
address_offset : 0x8 Bytes (0x0)
size : -1 bit
access : read-write
reset_value : 0x0
reset_Mask : 0x0
DMAEN : Enable DPWM and DAC DMA Interface.
bits : 0 - 0 (1 bit)
access : read-write
Enumeration:
#0 : 0
Disable PDMA. No requests will be made to PDMA controller
#1 : 1
Enable PDMA. Block will request data from PDMA controller whenever FIFO is not empty
End of enumeration elements list.
DPWM and DAC FIFO Input Register
address_offset : 0xC Bytes (0x0)
size : -1 bit
access : write-only
reset_value : 0x0
reset_Mask : 0x0
INDATA : DPWM and DAC FIFO Audio Data Input
A write to this register pushes data onto the DPWM and DAC FIFO and increments the write pointer. This is the address that PDMA writes audio data to.
bits : 0 - 15 (16 bit)
access : write-only
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