Datasheet

PWM
(C)
TxCTRIP
CxTRIP
PDPINTx
,
,
(B)
XCLKOUT
(A)
t , t , t
w(PDP) w(CxTRIP) w(TxCTRIP)
t , t
d(PDP-PWM)HZ d(TRIP-PWM)HZ
XNMI,
XINT1, XINT2
t
w(INT)
t
d(INT)
A0-A15
Interrupt Vector
TMS320F2810, TMS320F2811, TMS320F2812
TMS320C2810, TMS320C2811, TMS320C2812
SPRS174T –APRIL 2001–REVISED MAY 2012 www.ti.com
6.17.2 Interrupt Timing
Table 6-22. Interrupt Switching Characteristics
PARAMETER MIN MAX UNIT
Without input qualifier 12
Delay time, PDPINTx low to PWM high-
t
d(PDP-PWM)HZ
ns
impedance state
With input qualifier 1t
c(SCO)
+ IQT + 12
(1)
Without input qualifier 3 * t
c(SCO)
Delay time, CxTRIP/TxCTRIP signals low to
t
d(TRIP-PWM)HZ
ns
PWM high-impedance state
With input qualifier 2t
c(SCO)
+ IQT
(1)
t
d(INT)
Delay time, INT low/high to interrupt-vector fetch IQT + 12t
c(SCO)
(1)
ns
(1) Input Qualification Time (IQT) = [t
c(SCO)
× 2 × QUALPRD] × 5 + [t
c(SCO)
× 2 × QUALPRD].
Table 6-23. Interrupt Timing Requirements
MIN MAX UNIT
With no qualifier 2t
c(SCO)
t
w(INT)
Pulse duration, INT input low/high cycles
With qualifier 1t
c(SCO)
+ IQT
(1)
With no qualifier 2t
c(SCO)
t
w(PDP)
Pulse duration, PDPINTx input low cycles
With qualifier 1t
c(SCO)
+ IQT
(1)
With no qualifier 2t
c(SCO)
t
w(CxTRIP)
Pulse duration, CxTRIP input low cycles
With qualifier 1t
c(SCO)
+ IQT
(1)
With no qualifier 2t
c(SCO)
t
w(TxCTRIP)
Pulse duration, TxCTRIP input low cycles
With qualifier 1t
c(SCO)
+ IQT
(1)
(1) Input Qualification Time (IQT) = [t
c(SCO)
× 2 × QUALPRD] × 5 + [t
c(SCO)
× 2 × QUALPRD].
A. XCLKOUT = SYSCLKOUT
B. TxCTRIP – T1CTRIP, T2CTRIP, T3CTRIP, T4CTRIP
CxTRIP – C1TRIP, C2TRIP, C3TRIP, C4TRIP, C5TRIP, or C6TRIP
PDPINTx – PDPINTA or PDPINTB
C. PWM refers to all the PWM pins in the device (that is, PWMn and TnPWM pins or PWM pin pair relevant to each
CxTRIP pin). The state of the PWM pins after PDPINTx is taken high depends on the state of the FCOMPOE bit.
Figure 6-22. External Interrupt Timing
114 Electrical Specifications Copyright © 2001–2012, Texas Instruments Incorporated
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