OMAP-L137 Low-Power Applications Processor
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SPRS563A–SEPTEMBER 2008–REVISED OCTOBER 2008
6.18 EQEP Peripheral Registers Description(s)
The OMAP-L137 device contains up to two enhanced quadrature encoder (eQEP) modules. See the
OMAP-L137 Applications Processor DSP Peripherals Overview Reference Guide. – Literature Number
SPRUGA6 . for more details.
System
control registers
To CPU
EQEPxENCLK
SYSCLK2
QCPRD
QCAPCTL
16
QCTMR
16
16
Quadrature
capture unit
(QCAP)
QCTMRLAT
QCPRDLAT
QUTMR
QUPRD
QWDTMR
QWDPRD
Registers
used by
multiple units
32
16
QEPCTL
QEPSTS
QFLG
UTOUT
UTIME
QWDOG
QDECCTL
16
WDTOUT
EQEPxAIN
EQEPxBIN
EQEPxIIN
EQEPxINT
16
QCLK
QDIR
QI
EQEPxA/XCLK
EQEPxB/XDIR
EQEPxI
Position counter/
control unit
(PCCU)
Quadrature
decoder
(QDU)
EQEPxIOUT
EQEPxIOE
EQEPxSIN
EQEPxSOUT
EQEPxSOE
QS
GPIO
MUX
QPOSLAT
QPOSSLAT
QPOSILAT
PHE
PCSOUT
EQEPxS
32
32
16
QPOSCNT
QPOSINIT
QPOSMAX
QEINT
QFRC
QPOSCMP
QCLR
QPOSCTL
Enhanced QEP (eQEP) peripheral
Figure 6-42. eQEP Functional Block Diagram
Table 6-68 is the list of the EQEP registers.
Table 6-69 shows the eQEP timing requirement and Table 6-70 shows the eQEP switching
characteristics.
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Peripheral Information and Electrical Specifications
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