Texas Instruments SM320F2812-HT specifications Standby Mode Switching Characteristics1

SM320F2812-HT

www.ti.com SGUS062A –JUNE 2009 –REVISED APRIL 2010

Table 6-11is also the STANDBY Mode Wake-Up Timing Requirements table.

Table 6-11. STANDBY Mode Switching Characteristics(1)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
td(IDLE-XCOH)	Delay time, IDLE instruction		32 × tc(SCO)	12 × tc(CI)		Cycles
	executed to XCLKOUT high
	Pulse duration, external	Without input	12 × tc(CI)			Cycles
tw(WAKE-INT)		qualifier
	wake-up signal
		With input qualifier	(2 + QUALSTDBY)(2) × t			Cycles
			c(CI)
	Delay time, external wake
	signal to program execution
	resume(3)
	–Wake-up from Flash	Without input
	–Flash module in active		12 × tc(CI)			Cycles
		qualifier
	state
	–Wake-up from Flash
	–Flash module in active	With input qualifier	12 × tc(CI) + tw(WAKE-INT)			Cycles
td(WAKE-STBY)	state
	–Wake-up from Flash	Without input
	–Flash module in sleep		1125 × tc(SCO)			Cycles
		qualifier
	state
	–Wake-up from Flash
	–Flash module in sleep	With input qualifier	1125 × tc(SCO) + tw(WAKE-INT)			Cycles
	state
	–Wake-up from SARAM	Without input	12 x tc(CI)			Cycles
		qualifier
	–Wake-up from SARAM	With input qualifier	12 × tc(CI) + tw(WAKE-INT)			Cycles

(1)Not production tested.

(2)QUALSTDBY is a 6-bit field in the LPMCR0 register.

(3)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.

Copyright © 2009–2010, Texas Instruments Incorporated	Electrical Specifications	101
	Submit Documentation Feedback

Product Folder Link(s): SM320F2812-HT