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QWDTMR
QWDPRD
16
QWDOG
UTIME
QUPRD
QUTMR
32
UTOUT
WDTOUT
Quadrature
capture unit
(QCAP)
QCPRDLAT
QCTMRLAT
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)
QPOSLAT
QPOSSLAT
16
QPOSILAT
EQEPxAIN
EQEPxBIN
EQEPxIIN
EQEPxIOUT
EQEPxIOE
EQEPxSIN
EQEPxSOUT
EQEPxSOE
GPIO
MUX
EQEPxA/XCLK
EQEPxB/XDIR
EQEPxS
EQEPxI
QPOSCMP
QEINT
QFRC
32
QCLR
QPOSCTL
1632
QPOSCNT
QPOSMAX
QPOSINIT
PIE
EQEPxINT
Enhanced QEP (eQEP) peripheral
System
control registers
QCTMR
QCPRD
1616
QCAPCTL
EQEPxENCLK
SYSCLKOUT
Data bus
To CPU
TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801, TMS320C2802
TMS320C2801, TMS320F28016, TMS320F28015
www.ti.com
SPRS230L–OCTOBER 2003–REVISED DECEMBER 2009
4.5 Enhanced QEP Modules (eQEP1/2)
The 280x device contains up to two enhanced quadrature encoder (eQEP) modules. See the
TMS320x280x, 2801x, 2804x Enhanced Quadrature Encoder Pulse (eQEP) Module Reference Guide
(literature number SPRU790) for more details.
Figure 4-6. eQEP Functional Block Diagram
Copyright © 2003–2009, Texas Instruments Incorporated Peripherals 61
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Product Folder Link(s): TMS320F2809 TMS320F2808 TMS320F2806 TMS320F2802 TMS320F2801 TMS320C2802
TMS320C2801 TMS320F28016 TMS320F28015