write_protect
This register is used to control the assertion/de-assertion of the WP# pin to the device.
| Module Instance | Base Address | Register Address |
|---|---|---|
| nandregs | 0xFFB80000 | 0xFFB80280 |
Offset: 0x280
Access: RW
Important: To prevent indeterminate
system behavior, reserved areas of memory must not be accessed by software or
hardware. Any area of the memory map that is not explicitly defined as a register
space or accessible memory is considered reserved.
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
Reserved |
|||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved |
flag RW 0x1 |
||||||||||||||
write_protect Fields
| Bit | Name | Description | Access | Reset |
|---|---|---|---|---|
| 0 | flag | When the controller is in reset, the WP# pin is always asserted to the device. Once the reset is removed, the WP# is de-asserted. The software will then have to come and program this bit to assert/de-assert the same. [list][*]1 - Write protect de-assert [*]0 - Write protect assert[/list] |
RW | 0x1 |