Specifications

4.3 Action-Qualifier Submodule Registers
Action-Qualifier Submodule Registers www.ti.com
Figure 4-9. Compare A High Resolution Register (CMPAHR)
15 8
CMPAHR
R/W-0
7 0
Reserved
R-0
LEGEND: R/W = Read/Write; R = Read only; - n = value after reset
Table 4-9. Compare A High Resolution Register (CMPAHR) Field Descriptions
Bit Field Value Description
15-8 CMPAHR 00-FFh These 8-bits contain the high-resolution portion (least significant 8-bits) of the counter-compare A
value. CMPA:CMPAHR can be accessed in a single 32-bit read/write.
Shadowing is enabled and disabled by the CMPCTL[SHDWAMODE] bit as described for the CMPA
register.
7-0 Reserved Reserved for TI Test
Figure 4-10 through Figure 4-13 and Table 4-10 through Table 4-13 provide the action-qualifier submodule
register definitions.
Figure 4-10. Action-Qualifier Output A Control Register (AQCTLA)
15 12 11 10 9 8
Reserved CBD CBU
R-0 R/W-0 R/W-0
7 6 5 4 3 2 1 0
CAD CAU PRD ZRO
R/W-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 4-10. Action-Qualifier Output A Control Register (AQCTLA) Field Descriptions
Bits Name Value Description
15-12 Reserved Reserved
11-10 CBD Action when the time-base counter equals the active CMPB register and the counter is
decrementing.
00 Do nothing (action disabled)
01 Clear: force EPWMxA output low.
10 Set: force EPWMxA output high.
11 Toggle EPWMxA output: low output signal will be forced high, and a high signal will be forced low.
9-8 CBU Action when the counter equals the active CMPB register and the counter is incrementing.
00 Do nothing (action disabled)
01 Clear: force EPWMxA output low.
10 Set: force EPWMxA output high.
11 Toggle EPWMxA output: low output signal will be forced high, and a high signal will be forced low.
102 Registers SPRU791F – November 2004 – Revised July 2009
Submit Documentation Feedback