QWDTMR
QWDPRD
16
QWDOG
UTIME
QUPRD
QUTMR
32
UTOUT
WDTOUT
Quadrature
capture unit
(QCAP)
QCPRDLA
T
QCTMRLA
T
16
QFLG
QEPSTS
QEPCTL
Registers
used by
multiple units
QCLK
QDIR
QI
QS
PHE
PCSOUT
Quadrature
decoder
(QDU)
QDECCTL
16
Position counter/
control unit
(PCCU)
QPOSLA
T
QPOSSLA
T
16
QPOSILA
T
EQEPxAIN
EQEPxBIN
EQEPxIIN
EQEPxIOUT
EQEPxIOE
EQEPxSIN
EQEPxSOUT
EQEPxSOE
GPIO
MUX
EQEPxA/XCLK
EQEPxB/XDIR
EQEPxS
EQEPxI
QPOSCMP
QEINT
QFRC
32
QCLR
QPOSCTL
16
32
QPOSCNT
QPOSMAX
QPOSINIT
EQEPxINT
Enhanced QEP (eQEP) Peripheral
System
control registers
QCTMR
QCPRD
16
16
QCAPCTL
EQEPxENCLK
SYSCLK2
Data bus
T
o CPU
Interrupt Controller
OMAP-L137
www.ti.com
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
6.19 Enhanced Quadrature Encoder (eQEP) Peripheral
The OMAP-L137 device contains up to two enhanced quadrature encoder (eQEP) modules. See the
OMAP-L137 Applications Processor DSP Peripherals Overview Reference Guide.
(
SPRUGA6
) for more
details.
Figure 6-43. eQEP Functional Block Diagram
Table 6-75
is the list of the EQEP registers.
Table 6-76
shows the eQEP timing requirement and
Table 6-77
shows the eQEP switching
characteristics.
Copyright © 2008–2014, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
151
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