CXD5602 User Manual
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Table ADC-771 Sampling Rate Range Supported by the HPADC
Clock Source
Clock Frequency (Input to
SCU)
Supported Sampling Rate Range
Over Sampling Frequency
RCOSC
8.192 MHz
16 kHz to 32 kHz
2.048 MHz
1 Hz to 32.768 kHz
1 Hz to 32.768 kHz
None (actual rate conversion)
RTC
1 Hz to 32.768 kHz
1 Hz to 32.768 kHz
None (actual rate conversion)
XOSC
13 MHz
16.927 kHz to 33.854 kHz
2.167 MHz
3.21.2
ADC Block Diagram
Figure 3.26-1 describes the block diagram of the ADCIF module and around ADC macro circuits.
SCU_ANALOG
SCU_ADCIF_
FIFOIF
SCU_ANALOG
LPADC_Wrapper
LPAD_HV_AIN0
LPAD_HV_AIN1
LPAD_HV_AIN2
LPAD_HV_AIN3
LPAD_LV_CHSEL
LPAD_LV_CHSEL_OUT
LPAD_LV_DOUT
R
R
for GNSS
toggle data
( 0 <-> 1 )
toggle data
( 0, 1, 2, 3 )
HPADC_Wrapper
HPAD_HV_AIN0
HPAD_HV_AIN1
HPAD_LV_DATA_EN0
HPAD_LV_DOUT0
HPAD_LV_DATA_EN1
HPAD_LV_DOUT1
1
SEN_AIN2
1
SEN_AIN3
1
SEN_AIN4
1
SEN_AIN5
decimation
decimation
SCU_ADCIF_FIFO (L0)
16 words
SCU_ADCIF_FIFO (L1)
16 words
SCU_ADCIF_FIFO (L2)
16 words
SCU_ADCIF_FIFO (L3)
16 words
decimation
decimation
2's Comp.
CIC3
Filter
2's Comp.
CIC3
Filter
2's Comp.
SCU_ADCIF_FIFO (H0)
32 words
SCU_ADCIF_FIFO (H1)
32 words
SCU_ADCIF_REG
FIFO control
decimation control
LPADC control
HPADC control
interrupt
DMA_REQ / ACQ
APB
APB
SCU_ADCIF_MUX
APB
SCU_PWM
LPADC_EN
HPADC_EN
OAD_EN
1
SEN_AIN0
1
SEN_AIN1
SCU
Figure ADC-118 Block Diagram ADCIF module and around ADC macro circuits
3.21.3
Memory Map
Figure ADC-119 describes a memory map inside the ADCIF.
For the memory map seen from the higher layers, refer to Chapter of the SCU (3.9).
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