OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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Table 6-75. EQEP Registers
EQEP0
EQEP1
BYTE ADDRESS
BYTE ADDRESS
ACRONYM
REGISTER DESCRIPTION
0x01F0 9000
0x01F0 A000
QPOSCNT
eQEP Position Counter
0x01F0 9004
0x01F0 A004
QPOSINIT
eQEP Initialization Position Count
0x01F0 9008
0x01F0 A008
QPOSMAX
eQEP Maximum Position Count
0x01F0 900C
0x01F0 A00C
QPOSCMP
eQEP Position-compare
0x01F0 9010
0x01F0 A010
QPOSILAT
eQEP Index Position Latch
0x01F0 9014
0x01F0 A014
QPOSSLAT
eQEP Strobe Position Latch
0x01F0 9018
0x01F0 A018
QPOSLAT
eQEP Position Latch
0x01F0 901C
0x01F0 A01C
QUTMR
eQEP Unit Timer
0x01F0 9020
0x01F0 A020
QUPRD
eQEP Unit Period Register
0x01F0 9024
0x01F0 A024
QWDTMR
eQEP Watchdog Timer
0x01F0 9026
0x01F0 A026
QWDPRD
eQEP Watchdog Period Register
0x01F0 9028
0x01F0 A028
QDECCTL
eQEP Decoder Control Register
0x01F0 902A
0x01F0 A02A
QEPCTL
eQEP Control Register
0x01F0 902C
0x01F0 A02C
QCAPCTL
eQEP Capture Control Register
0x01F0 902E
0x01F0 A02E
QPOSCTL
eQEP Position-compare Control Register
0x01F0 9030
0x01F0 A030
QEINT
eQEP Interrupt Enable Register
0x01F0 9032
0x01F0 A032
QFLG
eQEP Interrupt Flag Register
0x01F0 9034
0x01F0 A034
QCLR
eQEP Interrupt Clear Register
0x01F0 9036
0x01F0 A036
QFRC
eQEP Interrupt Force Register
0x01F0 9038
0x01F0 A038
QEPSTS
eQEP Status Register
0x01F0 903A
0x01F0 A03A
QCTMR
eQEP Capture Timer
0x01F0 903C
0x01F0 A03C
QCPRD
eQEP Capture Period Register
0x01F0 903E
0x01F0 A03E
QCTMRLAT
eQEP Capture Timer Latch
0x01F0 9040
0x01F0 A040
QCPRDLAT
eQEP Capture Period Latch
0x01F0 905C
0x01F0 A05C
REVID
eQEP Revision ID
Table 6-76. Enhanced Quadrature Encoder Pulse (eQEP) Timing Requirements
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
t
w(QEPP)
QEP input period
Asynchronous/synchronous
2t
c(SCO)
cycles
t
w(INDEXH)
QEP Index Input High time
Asynchronous/synchronous
2t
c(SCO)
cycles
t
w(INDEXL)
QEP Index Input Low time
Asynchronous/synchronous
2t
c(SCO)
cycles
t
w(STROBH)
QEP Strobe High time
Asynchronous/synchronous
2t
c(SCO)
cycles
t
w(STROBL)
QEP Strobe Input Low time
Asynchronous/synchronous
2t
c(SCO)
cycles
Table 6-77. eQEP Switching Characteristics
PARAMETER
MIN
MAX
UNIT
t
d(CNTR)xin
Delay time, external clock to counter increment
4t
c(SCO)
cycles
t
d(PCS-OUT)QEP
Delay time, QEP input edge to position compare sync output
6t
c(SCO)
cycles
152
Peripheral Information and Electrical Specifications
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