ADV
ANCEINFORMA
TION
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
The eCAP module is clocked at the SYSCLK rate.
The clock enable bits (ECAP1–ECAP6) in the PCLKCR3 register turn off the eCAP module individually
(for low-power operation). Upon reset, ECAP1ENCLK is set to low, indicating that the peripheral clock
is off.
5.9.1.1
eCAP Electrical Data and Timing
shows the eCAP timing requirement and
shows the eCAP switching characteristics.
Table 5-53. eCAP Timing Requirement
(1)
MIN
MAX
UNIT
Asynchronous
2t
c(SYSCLK)
cycles
t
w(CAP)
Capture input pulse width
Synchronous
2t
c(SYSCLK)
cycles
With input qualifier
1t
c(SYSCLK)
+ t
w(IQSW)
cycles
(1)
For an explanation of the input qualifier parameters, see
Table 5-54. eCAP Switching Characteristics
over recommended operating conditions (unless otherwise noted)
PARAMETER
MIN
MAX
UNIT
t
w(APWM)
Pulse duration, APWMx output high/low
20
ns
112
Specifications
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