SPRS439I – JUNE 2007 – REVISED MARCH 2011
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4.6
Enhanced QEP Modules (eQEP1/2 )
The device contains up to two enhanced quadrature encoder (eQEP) modules .
shows the
block diagram of the eQEP module.
System Control
Registers
To CPU
EQEPxENCLK
QCPRD
QCAPCTL
16
16
QCTMRLAT
QCPRDLAT
QUTMR
QUPRD
32
QEPCTL
QEPSTS
QFLG
UTIME
UTOUT
QWDOG
WDTOUT
PIE
EQEPxINT
16
QPOSLAT
QPOSSLAT
QPOSILAT
32
QPOSCNT
QPOSINIT
QPOSMAX
32
QPOSCMP
16
QEINT
QFRC
QCLR
QPOSCTL
Enhanced QEP (eQEP) Peripheral
Position Counter/
Control Unit
(PCCU)
QCLK
QDIR
QI
QS Quadrature
Decoder
PHE
(QDU)
PCSOUT
QDECCTL
16
EQEPxAIN
EQEPxBIN
EQEPxIIN
EQEPxIOUT
EQEPxIOE
EQEPxSIN
EQEPxSOUT
EQEPxSOE
GPIO
MUX
EQEPxA/XCLK
EQEPxB/XDIR
EQEPxI
EQEPxS
QWDTMR
QWDPRD
16
Quadrature
Capture
Unit
(QCAP)
QCTMR
16
Registers
Used by
Multiple Units
Figure 4-7. eQEP Functional Block Diagram
76
Peripherals
Data Bus
SYSCLKOUT
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