SM320F28335-EP Datasheet, PDF (70/169 Pages) Texas Instruments – Digital Signal Controller (DSC)

SM320F28335-EP
SPRS581C – JUNE 2009 – REVISED JANUARY 2010
4.6 Enhanced QEP Modules (eQEP1/2)
The device contains up to two enhanced quadrature encoder (eQEP) modules.
SYSCLKOUT
System
control registers
EQEPxENCLK
To CPU
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16
QCTMRLAT
QCPRDLAT
QCAPCTL
16
QCPRD
QCTMR
16
Quadrature
capture unit
(QCAP)
Registers
used by
multiple units
QEPCTL
QUTMR
QUPRD
32
QWDTMR
QWDPRD
16
QEPSTS
QFLG
EQEPxINT
PIE
16
QPOSLAT
QPOSSLAT
QPOSILAT
UTOUT
UTIME
QWDOG
QDECCTL
16
WDTOUT
Position counter/
control unit
(PCCU)
QCLK
QDIR
QI
QS
PHE
Quadrature
decoder
(QDU)
PCSOUT
EQEPxAIN
EQEPxBIN
EQEPxA/XCLK
EQEPxIIN
EQEPxIOUT
EQEPxIOE
EQEPxSIN
GPIO
MUX
EQEPxB/XDIR
EQEPxI
EQEPxSOUT
EQEPxSOE
EQEPxS
32
32
16
QPOSCNT
QPOSINIT
QPOSMAX
QPOSCMP
QEINT
QFRC
QCLR
QPOSCTL
Enhanced QEP (eQEP) peripheral
Figure 4-7. eQEP Functional Block Diagram
70
Peripherals
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