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M451
May. 4, 2018
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Among the above described brake sources, the brake source coming from system fail can still be
specified to several different system fail conditions. These conditions include clock fail, Brown-out
detect, SRAM parity check error and Cortex
TM
-M4 lockup. Figure 6.9-34 shows that by setting
corresponding enable bits, the enabled system fail condition can be one of the sources to issue
the Brake system fail to the PWM brake.
BRKLTRG0 (PWM_SWBRK[8])
ACMP0_O
ACMP1_O
BRKP0EEN (PWM_BRKCTL0[4])
Brake Noise Filter
BRKP1EEN (PWM_BRKCTL0[5])
CPO0EBEN (PWM_BRKCTL0[0])
CPO1EBEN (PWM_BRKCTL0[1])
PWM1_BRAKE0
Brake Noise Filter
PWM0_BRAKE1
Brake
Function
Brake
Function
Edge Detect
Brake Source
Level Detect
Brake Source
Brake System Fail
SYSEBEN (PWM_BRKCTL0[7])
ACMP0_O
ACMP1_O
BRKP0LEN (PWM_BRKCTL0[12])
Brake Noise Filter
BRKP1LEN (PWM_BRKCTL0[13])
CPO0LBEN (PWM_BRKCTL0[8])
CPO1LBEN (PWM_BRKCTL0[9])
Brake Noise Filter
Brake System Fail
SYSLBEN (PWM_BRKCTL0[15])
BRKETRG0 (PWM_SWBRK[0])
(
M45xD/M45xC
Only)
0
1
BK0SRC
(PWM_BNF[16])
0
1
BK1SRC
(PWM_BNF[24])
PWM0_BRAKE0
(
M45xD/M45xC
Only)
(
M45xD/M45xC
Only)
PWM1_BRAKE1
Figure 6.9-33 Brake Source Block Diagram
CSSBRKEN (PWM_FAILBRK[0])
Clock Fail
BODBRKEN (PWM_FAILBRK[1])
Brown-Out Detect
RAMBRKEN (PWM_FAILBRK[2])
SRAM Parity Error
CORBRKEN (PWM_FAILBRK[3])
Cortex-M4 Lockup
Brake Source
Brake System
Fail
Figure 6.9-34 Brake System Fail Block Diagram
Polarity Control
6.9.5.24
Each PWM port, from PWM_CH0 to PWM_CH5, has an independent polarity control module to
configure the polarity of the active state of the PWM output. By default, the PWM output is active
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...