Texas Instruments AM335 Series

TSCTR
(counter-32 bit)
RST
CAP1
(APRD active)
LD
CAP2
(ACMP active)
LD
CAP3
(APRD shadow)
LD
CAP4
(ACMP shadow)
LD
Continuous /
Oneshot
Capture Control
LD1
LD2
LD3
LD4
32
32
PRD [0-31]
CMP [0-31]
CTR [0-31]
ECAPx
Interrupt
Trigger
and
Flag
control
to Interrupt
Controller
CMPEQ
32
32
32
32
32
ACMP
shadow
Event
Prescale
CTRPHS
(phase register-32 bit)
SYNCOut
SYNCIn
Event
qualifier
Polarity
select
Polarity
select
Polarity
select
Polarity
select
PRDEQ
CNTOVF
4
PWM
compare
logic
CTR [0-31]
PRD [0-31]
CMP [0-31]
CMPEQ
PRDEQ
CTR_OVF
OVF
APWM mode
Delta-mode
SYNC
4
Capture events
CEVT[1:4]
APRD
shadow
32
32
MODE SELECT
ECCTL2[SYNCI_EN, SYNCOSEL, SWSYNC]
ECCTL2[CAP/APWM]
Edge Polarity Select
ECCTL1[CAPxPOL]
ECCTL1[EVTPS]
ECCTL1 [ CAPLDEN, CTRRSTx]
ECCTL2 [ RE-ARM, CONT/ONESHT, STOP_WRAP]
Registers: ECEINT, ECFLG, ECCLR, ECFRC
Enhanced Capture (eCAP) Module www.ti.com
15.3.2.2 Capture Mode Description
Figure 15-102 shows the various components that implement the capture function.
Figure 15-102. Capture Function Diagram
1610
Pulse-Width Modulation Subsystem (PWMSS) SPRUH73H–October 2011–Revised April 2013
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