Datasheet

ADCSOCAO
ADCSOCBO
or
t
w(ADCSOCL)
TMS320F28030, TMS320F28031, TMS320F28032
TMS320F28033, TMS320F28034, TMS320F28035
www.ti.com SPRS584J –APRIL 2009–REVISED OCTOBER 2013
6.11.6 Enhanced Quadrature Encoder Pulse (eQEP) Timing
Table 6-26 shows the eQEP timing requirement and Table 6-27 shows the eQEP switching
characteristics.
Table 6-26. 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 Table 6-12.
(2) Refer to the TMS320F28030, TMS320F28031, TMS320F28032, TMS320F28033, TMS320F28034, TMS320F28035 Piccolo MCU
Silicon Errata (literature number SPRZ295) for limitations in the asynchronous mode.
Table 6-27. eQEP Switching Characteristics
over recommended operating conditions (unless otherwise noted)
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
6.11.7 ADC Start-of-Conversion Timing
Table 6-28. External ADC Start-of-Conversion Switching Characteristics
over recommended operating conditions (unless otherwise noted)
PARAMETER MIN MAX UNIT
t
w(ADCSOCL)
Pulse duration, ADCSOCxO low 32t
c(HCO )
cycles
Figure 6-19. ADCSOCAO or ADCSOCBO Timing
Copyright © 2009–2013, Texas Instruments Incorporated Electrical Specifications 127
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