Basic Operation
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SPNU563A–March 2018
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Enhanced Quadrature Encoder Pulse (eQEP) Module
34.2.2.1 eQEP Memory Map
Table 34-1 lists the registers with their memory locations, sizes, and reset values.
Table 34-1. EQEP Memory Map
Name
Address
Offset
Size(x16)/
#shadow Reset Register Description
QPOSCNT 0x00 2/0 0x00000000 eQEP Position Counter Register
QPOSINIT 0x04 2/0 0x00000000 eQEP Initialization Position Count Register
QPOSMAX 0x08 2/0 0x00000000 eQEP Maximum Position Count Register
QPOSCMP 0x0C 2/1 0x00000000 eQEP Position-Compare Register
QPOSILAT 0x10 2/0 0x00000000 eQEP Index Position Latch Register
QPOSSLAT 0x14 2/0 0x00000000 eQEP Strobe Position Latch Register
QPOSLAT 0x18 2/0 0x00000000 eQEP Position Latch Register
QUTMR 0x1C 2/0 0x00000000 eQEP Unit Timer Register
QUPRD 0x20 2/0 0x00000000 eQEP Unit Period Register
QWDPRD 0x24 1/0 0x0000 eQEP Watchdog Period Register
QWDTMR 0x26 1/0 0x0000 eQEP Watchdog Timer Register
QEPCTL 0x28 1/0 0x0000 eQEP Control Register
QDECCTL 0x2A 1/0 0x0000 eQEP Decoder Control Register
QPOSCTL 0x2C 1/0 0x00000 eQEP Position-Compare Control Register
QCAPCTL 0x2E 1/0 0x0000 eQEP Capture Control Register
QFLG 0x30 1/0 0x0000 eQEP Interrupt Flag Register
QEINT 0x32 1/0 0x0000 eQEP Interrupt Enable Register
QFRC 0x34 1/0 0x0000 eQEP Interrupt Force Register
QCLR 0x36 1/0 0x0000 eQEP Interrupt Clear Register
QCTMR 0x38 1/0 0x0000 eQEP Capture Timer Register
QEPSTS 0x3A 1/0 0x0000 eQEP Status Register
QCTMRLAT 0x3C 1/0 0x0000 eQEP Capture Timer Latch Register
QCPRD 0x3E 1/0 0x0000 eQEP Capture Period Register
Reserved 0x40 – – Reserved
QCPRDLAT 0x42 1/0 0x0000 eQEP Capture Period Latch Register
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