Clocking and System Control
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SPRUI07–March 2020
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System Control and Interrupts
Figure 1-15. Peripheral Clock Control 1 Register (PCLKCR1)
15 14 13 12 11 10 9 8
EQEP2ENCLK EQEP1ENCLK ECAP6ENCLK ECAP5ENCLK ECAP4ENCLK ECAP3ENCLK ECAP2ENCLK ECAP1ENCLK
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
7 6 5 4 3 2 1 0
Reserved EPWM6ENCLK EPWM5ENCLK EPWM4ENCLK EPWM3ENCLK EPWM2ENCLK EPWM1ENCLK
R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
(1)
This register is EALLOW protected. See Section 1.5.2 for more information.
(2)
If a peripheral block is not used, the clock to that peripheral can be turned off to minimize power consumption.
(3)
To start the ePWM Time-base clock (TBCLK) within the ePWM modules, the TBCLKSYNC bit in PCLKCR0 must also be set.
Table 1-16. Peripheral Clock Control 1 Register (PCLKCR1) Field Descriptions
Bits Field Value Description
(1)
15 EQEP2ENCLK eQEP2 clock enable
0 The eQEP2 module is not clocked. (default)
(2)
1 The eQEP2 module is clocked by the system clock (SYSCLKOUT).
14 EQEP1ENCLK eQEP1 clock enable
0 The eQEP1 module is not clocked. (default)
(2)
1 The eQEP1 module is clocked by the system clock (SYSCLKOUT).
13 ECAP6ENCLK eCAP6 clock enable. This bit is reserved on devices without the eCAP6 module.
0 The eCAP6 module is not clocked. (default)
1 The eCAP6 module is clocked by the system clock (SYSCLKOUT).
12 ECAP5ENCLK eCAP5 clock enable. This bit is reserved on devices without the eCAP5 module.
0 The eCAP5 module is not clocked. (default)
1 The eCAP5 module is clocked by the system clock (SYSCLKOUT).
11 ECAP4ENCLK eCAP4 clock enable
0 The eCAP4 module is not clocked. (default)
(2)
1 The eCAP4 module is clocked by the system clock (SYSCLKOUT).
10 ECAP3ENCLK eCAP3 clock enable
0 The eCAP3 module is not clocked. (default)
(2)
1 The eCAP3 module is clocked by the system clock (SYSCLKOUT).
9 ECAP2ENCLK eCAP2 clock enable
0 The eCAP2 module is not clocked. (default)
(2)
1 The eCAP2 module is clocked by the system clock (SYSCLKOUT).
8 ECAP1ENCLK eCAP1 clock enable
0 The eCAP1 module is not clocked. (default)
(2)
1 The eCAP1 module is clocked by the system clock (SYSCLKOUT).
7:6 Reserved 0 Reserved
5 EPWM6ENCLK ePWM6 clock enable
(3)
0 The ePWM6 module is not clocked. (default)
(2)
1 The ePWM6 module is clocked by the system clock (SYSCLKOUT).
4 EPWM5ENCLK ePWM5 clock enable
(3)
0 The ePWM5 module is not clocked. (default)
(2)
1 The ePWM5 module is clocked by the system clock (SYSCLKOUT).
3 EPWM4ENCLK ePWM4 clock enable.
(3)
0 The ePWM4 module is not clocked. (default)
(2)
1 The ePWM4 module is clocked by the system clock (SYSCLKOUT).