Datasheet

WAKE INT
(B)
XCLKOUT
(A)
A0-A15
t
d(WAKE-IDLE)
t
w(WAKE-INT)
TMS320F2810, TMS320F2811, TMS320F2812
TMS320C2810, TMS320C2811, TMS320C2812
SPRS174T –APRIL 2001–REVISED MAY 2012 www.ti.com
6.16 Low-Power Mode Wakeup Timing
Table 6-12. IDLE Mode Timing Requirements
MIN NOM MAX UNIT
Without input qualifier 2t
c(SCO)
t
w(WAKE-INT)
Pulse duration, external wake-up signal cycles
With input qualifier 1t
c(SCO)
+ IQT
(1)
(1) Input Qualification Time (IQT) = [t
c(SCO)
× 2 × QUALPRD] × 5 + [t
c(SCO)
× 2 × QUALPRD].
Table 6-13. IDLE Mode Switching Characteristics
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Delay time, external wake signal to program execution resume
(1)
Without input qualifier 8t
c(SCO)
• Wake-up from Flash
cycles
– Flash module in active state With input qualifier 8t
c(SCO)
+ IQT
(2)
t
d(WAKE-IDLE)
Without input qualifier 1050t
c(SCO)
• Wake-up from Flash
cycles
– Flash module in sleep state With input qualifier 1050t
c(SCO)
+ IQT
(2)
Without input qualifier 8t
c(SCO)
• Wake-up from SARAM
cycles
With input qualifier 8t
c(SCO)
+ IQT
(2)
(1) This is the time taken to begin execution of the instruction that immediately follows the IDLE instruction. Execution of an ISR (triggered
by the wake-up) signal involves additional latency.
(2) Input Qualification Time (IQT) = [t
c(SCO)
× 2 × QUALPRD] × 5 + [t
c(SCO)
× 2 × QUALPRD].
A. XCLKOUT = SYSCLKOUT
B. WAKE INT can be any enabled interrupt, WDINT, XNMI, or XRS.
Figure 6-15. IDLE Entry and Exit Timing
108 Electrical Specifications Copyright © 2001–2012, Texas Instruments Incorporated
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