tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 640

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Backup module
26.7
Transition flowchart
・Supplying electricity only to backup
module
・Main regulator stops
・Transition to reset mode
・Power supply to main regulator: ON
・Power supply stability time (Warm-Up)
・Oscillation stability time (Warm-Up)
・Reset
・Normal operation
Checking reset flag.
Checking if it can return to backup
mode
Setting for interrupt
Jump to a handler.
Checking a factor to activate backup
mode
Default setting of port
PTKEEP=0/BUP=0
Retaining port condition PTKEEP=1,
Transition to STOP/SLEEP mode
Waiting for an interrupt
Transition to HALT mode
Preparing for standby
Backup for mode setting
STB=STOP/SLEEP
Setting CG register
During standby
TMP19A44 (rev1.3)26-6
Processed by
software
Processed by
software
TMP19A44
2010-04-01