Program execution SRAM on BL4S200 series

Rabbit
1

In the BL4S200 series of SBCs, two of the models have “Program Execution SRAM”. Is this battery-backed RAM? Does this allow the system to recover from a loss of power without losing the state of the program?

The BL4S210 and BL4S230 lack this SRAM. Do they still have some amount of RAM which is used for program execution?

Any insight is greatly appreciated. Thanks.

2

Data sram is battery backed, program execution sram is not.
Please see Users manual located at http://www.rabbit.com/documentation/docs/manuals/BL4S200/BL4S20UM.pdf