Low Power Modes overview

AN4231

8/22

DocID024130 Rev 2

I

It is possible to enable from 8 KB up to 96 KB of SRAM in STANDBY mode for Power

Configurations 2 and 3.

Figure 2. Power domain organization

Table 1. RAM configurations in modes

Mode(s)

8 KB

0x4000_0000

0x4000_1FFF

56 KB

0x4000_2000

0x4000_FFFF

32 KB

0x4001_0000

0x4001_7FFF

32 KB

0x4001_8000

0x4001_FFFF

128 KB

0x4002_0000

0x4003_FFFF

RUN,STOP.HALT

On

On

On

On

On

STANDBY

On

PCONF[2]

PCONF[3]

Off

Off

Table 2. PCONF setting for RAM in STANDBY

STANDBY RAM (KB)

PCONF[2]

PCONF[3]

800

64 (8+56)

1

0

96 (8 +56 +32)

1

1

40 (8+32)

0

1

GAPGRI00363