tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 635

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

26. Backup module
Backup module
26.1 Features
26.2 Overview
26.3 Operation in Backup Mode
cutting electricity to the entire block, such as CPU or other peripheral I/Ps, other than the backup module, this mode
significantly reduces power consumption.
The backup mode, one of the system operation modes, enables the 19A44 to operate in the low power consumption. By
The backup mode operates in lower power consumption than STOP/SLEEP modes.
・DSU
・PORT
・Two-phase counter
Transition to the backup mode is available while DSU is connected.
When the transition takes place, the power supply to DSU is not cut and DSU retains data but stops operating.
High-speed counting is available in both Backup STOP and Backup SLEEP modes.
Output/Pull-up: retains the condition set in the PORTKEEP register.
Input: disabled (two-phase counter, key-on wake-up and INT input are enabled.)
Key-on wake-up operates by dynamic pull-up (input enabled).
Backup SLEEP
Backup STOP
Backup mode
Two-phase counter (counting enabled）, INT, Key-on wake-up (static),
STOP release ,reset
Two-phase counter (asynchronous input) ,INT, Key-on wake-up
(dynamic/static), real time clock,reset
TMP19A44 (rev1.3)26-1
Condition for releasing standby mode
TMP19A44
2010-04-01