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M451
May. 4, 2018
Page
931
of
1006
Rev.2.08
M4
51
S
E
RI
E
S
T
E
CH
NICA
L RE
F
E
R
E
NC
E
M
A
NU
A
L
6.22.3 Block Diagram
12-bit DAC
Analog Control Logics
Successive
Approximations Register
+
-
Digatal Control Logics
&
ADC Clock Generator
..
.
EADC_CH0
EADC_CH15
1
9
t
o
1
A
n
a
lo
g
M
U
X
Sample and Hold
Comparator
A
D
C
_
F
IN
IS
H
A/D result [11:0]
Analog Macro
A
D
C
_
S
T
A
R
T
&
A
D
C
_
C
L
K
V
BG
V
TEMP
CHSEL
[4:0]
VALID & OVERRUN
User write, STADC input,
ADC interrupt, Timer0~3,
PWM triggers
Trigger
V
BAT
/2
Internal Reference
Voltage Generator
INT_VREF
V
REF
V
REF
V
BAT
Voltage
Divide 2
VTEMPEN
(SYS_IVSCTL[0])
VBATUGEN
(SYS_IVSCTL[1])
A/D Sample Module 18
A/D Sample Module 0
..
.
Result Register
(EADC_DAT0)
Control Register
(EADC_SCTL0)
VREFCTL
(SYS_VREFCTL[4:0])
Figure 6.22-1 ADC Converter Block Diagram
6.22.4 Basic Configuration
Table 4-1 lists M451 GPIO Multi-function to show the difference between M45xG/M45xE and
M45xD/M45xC. The EADC pins are configured in SYS_GPB_MFPL and SYS_GPB_MFPH registers
for M45xG/M45xE, in SYS_GPB_MFPL, SYS_GPB_MFPH, SYS_GPD_MFPL and SYS_GPD_MFPH
registers for M45xD/M45xC. The External pin STADC is configured in SYS_GPD_MFPL register for
M45xG/M45xE, in SYS_GPD_MFPL , SYS_GPA_MFPL or SYS_GPB_MFPL registers for
M45xD/M45xC. The ADC Controller clock source is enabled by EADCCKEN (CLK_APBCLK0[28]).
After the EADC pins is configured to ADC analog input, DINOFF (PB_DINOFF[31:16] in GPIO
register) should be set to 1 to disable digital input path.
Содержание ARM Cortex NuMicro M451 Series
Страница 301: ...M451 May 4 2018 Page 301 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL...
Страница 324: ...M451 May 4 2018 Page 324 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL Figure 6 4 18 Checksum Calculation Flow...
Страница 355: ...M451 May 4 2018 Page 355 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 2 0 Reserved Reserved...
Страница 625: ...M451 May 4 2018 Page 625 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 00 5 bits 01 6 bits 10 7 bits 11 8 bits...
Страница 721: ...M451 May 4 2018 Page 721 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL the SCL line 1 0 Reserved Reserved...
Страница 1001: ...M451 May 4 2018 Page 1001 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 10x10x1 4 mm footprint 2 0 mm 9 2...
Страница 1002: ...M451 May 4 2018 Page 1002 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 7x7x1 4 mm footprint 2 0 mm 9 3...
Страница 1003: ...M451 May 4 2018 Page 1003 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 48L 7x7x1 4mm footprint 2 0mm 9 4...