WAKE INT
(A)
XCLKOUT
Address/Data
(internal)
t
d(WAKE−IDLE)
t
w(WAKE−INT)
TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801, TMS320C2802
TMS320C2801, TMS320F28016, TMS320F28015
SPRS230N – OCTOBER 2003 – REVISED MAY 2012
www.ti.com
6.9.4
Low-Power Mode Wakeup Timing
Table 6-16
shows the timing requirements,
Table 6-17
shows the switching characteristics, and
Figure 6-
14
shows the timing diagram for IDLE mode.
Table 6-16. IDLE Mode Timing Requirements
(1)
MIN
NOM
MAX
UNIT
Without input qualifier
2t
c(SCO)
t
w(WAKE-INT)
Pulse duration, external wake-up signal
cycles
With input qualifier
5t
c(SCO)
+ t
w(IQSW)
(1)
For an explanation of the input qualifier parameters, see
Table 6-15
.
Table 6-17. IDLE Mode Switching Characteristics
(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Delay time, external wake signal to
program execution resume
(2)
Without input qualifier
20t
c(SCO)
cycles
•
Wake-up from Flash
–
Flash module in active state
With input qualifier
20t
c(SCO)
+ t
w(IQSW)
t
d(WAKE-IDLE)
Without input qualifier
1050t
c(SCO)
cycles
•
Wake-up from Flash
–
Flash module in sleep state
With input qualifier
1050t
c(SCO)
+ t
w(IQSW)
Without input qualifier
20t
c(SCO)
cycles
•
Wake-up from SARAM
With input qualifier
20t
c(SCO)
+ t
w(IQSW)
(1)
For an explanation of the input qualifier parameters, see
Table 6-15
.
(2)
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.
A.
WAKE INT can be any enabled interrupt, WDINT, XNMI, or XRS.
Figure 6-14. IDLE Entry and Exit Timing
112
Electrical Specifications
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