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M451
May. 4, 2018
Page
437
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1006
Rev.2.08
M4
51
S
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RI
E
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T
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CH
NICA
L RE
F
E
R
E
NC
E
M
A
NU
A
L
6.9.3 Block Diagram
A
P
B
PWM0
PWM0_BRAKE0
PWM0_BRAKE1
PWM0_SYNC_IN
SYNC_IN
SYNC_IN
SYNC_OUT
PWM1_BRAKE0
PWM1_BRAKE1
TIMER0
EADC
CLOCK
CONTROLLER
5
PWM1
TIMER1
TIMER2
TIMER3
SYNC_IN
DAC
PDMA
PWM0_CH0
PWM0_CH5
4
4
NVIC_MUX
3
3
6
6
PWM1_CH5
PWM1_CH0
Note:
Only capture
mode output to PDMA
Clock Fail
ACMP
Brown-Out Detect
SRAM Parity Error
CPU Lockup
Brake Source
6
PWM0_SYNC_OUT
Figure 6.9-1 PWM Generator Overview Block Diagram
PWM system clock frequency can be set equal or double to HCLK frequency as Figure 6.9-2, the
detail register setting, please refer to Table 6-13.
Each PWM generator has three clock source inputs, each clock source can be selected from system
clock or four TIMER trigger PWM outputs as Figure 6.9-3 by ECLKSRC0 (PWM_CLKSRC[2:0]) for
PWM_CLK0, ECLKSRC2 (PWM_CLKSRC[10:8]) for PWM_CLK2 and ECLKSRC4
(PWM_CLKSRC[18:16]).
HCLKSEL
(CLK_CLKSEL0[2:0])
1/(1)
HCLK
0
1
0
1
PWM0
system clock
PWM1
system clock
PCLK0
PCLK1
PWM1SEL (CLK_CLKSEL2[1])
PWM0SEL (CLK_CLKSEL2[0])
PWM0CKEN (CLK_APBCLK1[16])
PWM1CKEN (CLK_APBCLK1[17])
HCLKDIV (CLK_CLKDIV0[3:0])
0
1
2
3
7
HXT
LXT
PLL
LIRC
HIRC
Figure 6.9-2 PWM System Clock Source Control
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...