Texas Instruments Delfino C28346 DIM168 ControlCARD TMDSCNCD28346-168 TMDSCNCD28346-168 데이터 시트
제품 코드
TMDSCNCD28346-168
SPRS516D – MARCH 2009 – REVISED AUGUST 2012
6.11.5 Enhanced Quadrature Encoder Pulse (eQEP) Timing
shows the eQEP timing requirement and
shows the eQEP switching
characteristics.
Table 6-25. Enhanced Quadrature Encoder Pulse (eQEP) Timing Requirements
(1)
TEST CONDITIONS
MIN
MAX
UNIT
t
w(QEPP)
QEP input period
Asynchronous
(2)
/synchronous
2t
c(SCO)
cycles
With input qualifier
2[1t
c(SCO)
+ t
w(IQSW)
]
cycles
t
w(INDEXH)
QEP Index Input High time
Asynchronous
(2)
/synchronous
2t
c(SCO)
cycles
With input qualifier
2t
c(SCO)
+ t
w(IQSW)
cycles
t
w(INDEXL)
QEP Index Input Low time
Asynchronous
(2)
/synchronous
2t
c(SCO)
cycles
With input qualifier
2t
c(SCO)
+ t
w(IQSW)
cycles
t
w(STROBH)
QEP Strobe High time
Asynchronous
(2)
/synchronous
2t
c(SCO)
cycles
With input qualifier
2t
c(SCO)
+ t
w(IQSW)
cycles
t
w(STROBL)
QEP Strobe Input Low time
Asynchronous
(2)
/synchronous
2t
c(SCO)
cycles
With input qualifier
2t
c(SCO)
+ t
w(IQSW)
cycles
(1)
For an explanation of the input qualifier parameters, see
(2)
Refer to the TMS320C2834x Delfino MCU Silicon Errata (literature number
) for limitations in the asynchronous mode.
Table 6-26. eQEP Switching Characteristics
PARAMETER
TEST CONDITIONS
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
6t
c(SCO)
cycles
output
130
Electrical Specifications
Copyright © 2009–2012, Texas Instruments Incorporated
Product Folder Link(s):