According to the reference manual STM32G0B1xx has different page size depends on flash size:
Up to 512 Kbytes of Flash memory (Main memory):
- up to 64 Kbytes for STM32G031xx and STM32G041xx / STM32G051xx and STM32G061xx
- up to 128 Kbytes for STM32G071xx and STM32G081xx
- up to 512 Kbytes for STM32G0B1xx and STM32G0C1xx
- Page size: 2 Kbytes
- Subpage size: 512 bytes
So, we have 512 Kbytes dual-bank device.
The main memory is:
| Area | Name | hex address | Size |
|---|---|---|---|
| Bank 2 | Page 383 Page 258-382 Page 257 Page 256 |
0x0807 F800 - 0x0807 FFFF ... 0x0804 0800 - 0x0804 0FFF 0x0804 0000 - 0x0804 07FF |
2 KByte ... 2 KByte 2 KByte |
| Bank 1 | Page 127 Page 2-126 Page 1 Page 0 |
0x0803 F800 - 0x0803 FFFF ... 0x0800 0800 - 0x0800 0FFF 0x0800 0000 - 0x0800 07FF |
2 KByte ... 2 KByte 2 KByte |