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Basic Operation

33.2.2.1 eQEP Memory Map

Table 33-1 lists the registers with their memory locations, sizes, and reset values.

Table 33-1. EQEP Memory Map

Address Size(x16)/

Name Offset #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 QEP Unit Timer Register

QUPRD 0x20 2/0 0x00000000 eQEP Unit Period Register

QWDPRD 0x26 1/0 0x0000 eQEP Watchdog Period Register

QWDTMR 0x24 1/0 0x0000 eQEP Watchdog Timer Register

QEPCTL 0x2A 1/0 0x0000 eQEP Control Register

QDECCTL 0x28 1/0 0x0000 eQEP Decoder Control Register

QPOSCTL 0x2E 1/0 0x00000 eQEP Position-Compare Control Register

QCAPCTL 0x2C 1/0 0x0000 eQEP Capture Control Register

QFLG 0x32 1/0 0x0000 eQEP Interrupt Flag Register

QEINT 0x30 1/0 0x0000 eQEP Interrupt Enable Register

QFRC 0x36 1/0 0x0000 eQEP Interrupt Force Register

QCLR 0x34 1/0 0x0000 eQEP Interrupt Clear Register

QCTMR 0x3A 1/0 0x0000 eQEP Capture Timer Register

QEPSTS 0x38 1/0 0x0000 eQEP Status Register

QCTMRLAT 0x3E 1/0 0x0000 eQEP Capture Timer Latch Register

QCPRD 0x3C 1/0 0x0000 eQEP Capture Period Register

Reserved 0x42 – – Reserved

QCPRDLAT 0x40 1/0 0x0000 eQEP Capture Period Latch Register

1679

SPNU562–May 2014 Enhanced QEP (eQEP) Module

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