trezor-firmware/core/docs/memory.md

Memory Layout

Flash

sector	range	size	function
Sector 0	0x08000000 - 0x08003FFF	16 KiB	boardloader (1st stage) (write-protected)
Sector 1	0x08004000 - 0x08007FFF	16 KiB	boardloader (1st stage) (write-protected)
Sector 2	0x08008000 - 0x0800BFFF	16 KiB	boardloader (1st stage) (write-protected)
Sector 3	0x0800C000 - 0x0800FFFF	16 KiB	unused
Sector 4	0x08010000 - 0x0801FFFF	64 KiB	storage area #1
Sector 5	0x08020000 - 0x0803FFFF	128 KiB	bootloader (2nd stage)
Sector 6	0x08040000 - 0x0805FFFF	128 KiB	firmware
Sector 7	0x08060000 - 0x0807FFFF	128 KiB	firmware
Sector 8	0x08080000 - 0x0809FFFF	128 KiB	firmware
Sector 9	0x080A0000 - 0x080BFFFF	128 KiB	firmware
Sector 10	0x080C0000 - 0x080DFFFF	128 KiB	firmware
Sector 11	0x080E0000 - 0x080FFFFF	128 KiB	firmware
Sector 12	0x08100000 - 0x08103FFF	16 KiB	unused
Sector 13	0x08104000 - 0x08107FFF	16 KiB	unused
Sector 14	0x08108000 - 0x0810BFFF	16 KiB	unused
Sector 15	0x0810C000 - 0x0810FFFF	16 KiB	unused
Sector 16	0x08110000 - 0x0811FFFF	64 KiB	storage area #2
Sector 17	0x08120000 - 0x0813FFFF	128 KiB	firmware extra
Sector 18	0x08140000 - 0x0815FFFF	128 KiB	firmware extra
Sector 19	0x08160000 - 0x0817FFFF	128 KiB	firmware extra
Sector 20	0x08180000 - 0x0819FFFF	128 KiB	firmware extra
Sector 21	0x081A0000 - 0x081BFFFF	128 KiB	firmware extra
Sector 22	0x081C0000 - 0x081DFFFF	128 KiB	firmware extra
Sector 23	0x081E0000 - 0x081FFFFF	128 KiB	firmware extra

OTP

block	range	size	function
block 0	0x1FFF7800 - 0x1FFF781F	32 B	device batch (week of manufacture)
block 1	0x1FFF7820 - 0x1FFF783F	32 B	bootloader downgrade protection
block 2	0x1FFF7840 - 0x1FFF785F	32 B	vendor keys lock
block 3	0x1FFF7860 - 0x1FFF787F	32 B	entropy/randomness
block 4	0x1FFF7880 - 0x1FFF789F	32 B	unused
block 5	0x1FFF78A0 - 0x1FFF78BF	32 B	unused
block 6	0x1FFF78C0 - 0x1FFF78DF	32 B	unused
block 7	0x1FFF78E0 - 0x1FFF78FF	32 B	unused
block 8	0x1FFF7900 - 0x1FFF791F	32 B	unused
block 9	0x1FFF7920 - 0x1FFF793F	32 B	unused
block 10	0x1FFF7940 - 0x1FFF795F	32 B	unused
block 11	0x1FFF7960 - 0x1FFF797F	32 B	unused
block 12	0x1FFF7980 - 0x1FFF799F	32 B	unused
block 13	0x1FFF79A0 - 0x1FFF79BF	32 B	unused
block 14	0x1FFF79C0 - 0x1FFF79DF	32 B	unused
block 15	0x1FFF79E0 - 0x1FFF79FF	32 B	unused

RAM

region	range	size	function
CCMRAM	0x10000000 - 0x1000FFFF	64 KiB	Core Coupled Memory
SRAM1	0x20000000 - 0x2001BFFF	112 KiB	General Purpose SRAM
SRAM2	0x2001C000 - 0x2001FFFF	16 KiB	General Purpose SRAM
SRAM3	0x20020000 - 0x2002FFFF	64 KiB	General Purpose SRAM