ADV
ANCEINFORMA
TION
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
shows the STANDBY mode timing requirements,
shows the switching
characteristics, and
shows the timing diagram for STANDBY mode.
Table 5-30. STANDBY Mode Timing Requirements
MIN
MAX
UNIT
Without input qualification
3t
c(OSCCLK)
Pulse duration, external
t
w(WAKE-INT)
cycles
wakeup signal
With input qualification
(1)
(2 + QUALSTDBY) * t
c(OSCCLK)
(1)
QUALSTDBY is a 6-bit field in the LPMCR register.
Table 5-31. STANDBY Mode Switching Characteristics
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Delay time, IDLE instruction executed to
t
d(IDLE-XCOS)
16t
c(INTOSC1)
cycles
XCLKOUT stop
Delay time, external wake signal to
program execution resume
(1)
Without input qualifier
175t
c(SYSCLK)
•
Wakeup from flash
–
Flash module in active state
With input qualifier
175t
c(SYSCLK)
+ t
w(WAKE-INT)
t
d(WAKE-STBY)
Without input qualifier
6700t
c(SYSCLK)
cycles
•
Wakeup from flash
–
Flash module in sleep state
With input qualifier
6700t
c(SYSCLK)
+ t
w(WAKE-INT)
Without input qualifier
3t
c(OSC)
+ 15t
c(SYSCLK)
•
Wakeup from SARAM
3t
c(OSC)
+ 15t
c(SYSCLK)
+
With input qualifier
t
w(WAKE-INT)
(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 wakeup signal) involves additional latency.
76
Specifications
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