OMAP-L137 Low-Power Applications Processor
SPRS563A–SEPTEMBER 2008–REVISED OCTOBER 2008
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Time−base (TB)
Sync
in/out
select
Mux
CTR=ZERO
CTR=CMPB
Disabled
TBPRD shadow (16)
TBPRD active (16)
EPWMxSYNCO
EPWMxSYNCI
CTR=PRD
TBCTL[SYNCOSEL]
TBCTL[CNTLDE]
Counter
up/down
(16 bit)
TBCTL[SWFSYNC]
(software forced sync)
CTR=ZERO
TBCNT
active (16)
CTR_Dir
TBPHSHR (8)
16
8
CTR = PRD
CTR = ZERO
CTR = CMPA
CTR = CMPB
CTR_Dir
Phase
Event
trigger
and
interrupt
(ET)
TBPHS active (24)
control
EPWMxINT
Counter compare (CC)
CTR=CMPA
CMPAHR (8)
Action
qualifier
(AQ)
16
8
HiRes PWM (HRPWM)
CMPA active (24)
EPWMA
EPWMB
EPWMxA
CMPA shadow (24)
CTR=CMPB
Dead
band
(DB)
PWM
chopper
(PC)
Trip
zone
(TZ)
16
EPWMxB
EPWMxTZINT
TZ
CMPB active (16)
CMPB shadow (16)
CTR = ZERO
Figure 6-44. eHRPWM Sub-Modules Showing Critical Internal Signal Interconnections
Table 6-71. eHRPWM Module Control and Status Registers Grouped by Submodule
eHRPWM1
BYTE ADDRESS BYTE ADDRESS
eHRPWM2
eHRPWM3
BYTE ADDRESS Acronym
Size Shad
(×16) ow
Register Description
Time-Base Submodule Registers
0x01F0 0000
0x01F0 0002
0x01F0 0004
0x01F0 2000
0x01F0 2002
0x01F0 2004
0x01F0 4000
0x01F0 4002
0x01F0 4004
TBCTL
1
1
1
No
No
No
Time-Base Control Register
Time-Base Status Register
TBSTS
TBPHSHR
Extension for HRPWM Phase Register
(1)
0x01F0 0006
0x01F0 0008
0x01F0 000A
0x01F0 2006
0x01F0 2008
0x01F0 200A
0x01F0 4006
0x01F0 4008
0x01F0 400A
TBPHS
TBCNT
TBPRD
1
1
1
No
No
Time-Base Phase Register
Time-Base Counter Register
Yes Time-Base Period Register
Counter-Compare Submodule Registers
0x01F0 000E
0x01F0 0010
0x01F0 200E
0x01F0 2010
0x01F0 400E
0x01F0 4010
CMPCTL
CMPAHR
1
1
No
No
Counter-Compare Control Register
Extension for HRPWM
Counter-Compare A Register
(1)
0x01F0 0012
0x01F0 0014
0x01F0 2012
0x01F0 2014
0x01F0 4012
0x01F0 4014
CMPA
CMPB
1
1
Yes Counter-Compare A Register
Yes Counter-Compare B Register
(1) These registers are only available on eHRPWM instances that include the high-resolution PWM (HRPWM) extension; otherwise, these
locations are reserved.
170
Peripheral Information and Electrical Specifications
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