6.2.7.35 LCDC Write Protection Mode Register
See section Register Write Protection for the list of registers that can be protected.
| Name: | LCDC_WPMR |
| Offset: | 0x000000E4 |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| WPKEY[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| LCKCREN | LCKITEN | LCKCFGEN | |||||||
| Access | R/W | R/W | R/W | ||||||
| Reset | 0 | 0 | 0 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| HEWPCRE | HEWPITE | HEWPCFGE | O1WPCRE | ||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| O1WPITE | O1WPCFGE | BWPCRE | BWPITE | BWPCFGE | WPCRE | WPITE | WPCFGE | ||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Bits 31:24 – WPKEY[7:0] Write Protection Key Password
| Value | Name | Description |
|---|---|---|
| 0x58 | PASSWD |
Writing any other value in this field aborts the write operation of the WPCFGE, WPITE, WPCRE bits. Always reads as 0. |
Bit 23 – LCKCREN Write Protection Lock Enable for Control Register
| Value | Description |
|---|---|
| 0 | No effect. |
| 1 | Locks the write access to the WPCRE bit until the next system reset. WPCRE must be set in the same access to per-form the action. |
Bit 22 – LCKITEN Write Protection Lock Enable for Interrupt Register
| Value | Description |
|---|---|
| 0 |
No effect. |
| 1 | Locks the write access to the WPITE bit until the next system reset. WPITE must be set in the same access to perform the action. |
Bit 21 – LCKCFGEN Write Protection Lock Enable for Configuration Register
| Value | Description |
|---|---|
| 0 |
No effect. |
| 1 | Locks the write access to the WPCFGE bit until the next system reset. WPCFGE must be set in the same access to perform the action. |
Bit 14 – HEWPCRE High-End Overlay Write Protection Control Registers Enable
| Value | Description |
|---|---|
| 0 | Disables the write protection of High-End Overlay Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 | Enables the write protection of High-End Overlay Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 13 – HEWPITE High-End Overlay Write Protection Interrupt Registers Enable
| Value | Description |
|---|---|
| 0 | Disables the write protection of High-End Overlay Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 | Enables the write protection of High-End Overlay Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 12 – HEWPCFGE High-End Overlay Write Protection Configuration Registers Enable
| Value | Description |
|---|---|
| 0 | Disables the write protection of High-End Overlay Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 | Enables the write protection of High-End Overlay Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 8 – O1WPCRE Overlay 1 Write Protection Control Registers Enable
| Value | Description |
|---|---|
| 0 | Disables the write protection of Overlay 1 Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 | Enables the write protection of Overlay 1 Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 7 – O1WPITE Overlay 1 Write Protection Interrupt Registers Enable
| Value | Description |
|---|---|
| 0 | Disables the write protection of Overlay 1 Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 | Enables the write protection of Overlay 1 Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 6 – O1WPCFGE Overlay 1 Write Protection Configuration Registers Enable
| Value | Description |
|---|---|
| 0 | Disables the write protection of Overlay 1 Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 | Enables the write protection of Overlay 1 Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 5 – BWPCRE Base Layer Write Protection Control Registers Enable
| Value | Description |
|---|---|
| 0 |
Disables the write protection of base layer Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 |
Enables the write protection of base layer Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 4 – BWPITE Base Layer Write Protection Interrupt Registers Enable
| Value | Description |
|---|---|
| 0 |
Disables the write protection of base layer Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 |
Enables the write protection of base layer Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 3 – BWPCFGE Base Layer Write Protection Configuration Registers Enable
| Value | Description |
|---|---|
| 0 |
Disables the write protection of base layer Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 |
Enables the write protection of base layer Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 2 – WPCRE Write Protection Control Registers Enable
| Value | Description |
|---|---|
| 0 |
Disables the write protection of LCDC Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 |
Enables the write protection of LCDC Control registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 1 – WPITE Write Protection Interrupt Registers Enable
| Value | Description |
|---|---|
| 0 |
Disables the write protection of LCDC Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 |
Enables the write protection of LCDC Interrupt Enable/Disable registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
Bit 0 – WPCFGE Write Protection Configuration Registers Enable
| Value | Description |
|---|---|
| 0 |
Disables the write protection of LCDC Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |
| 1 |
Enables the write protection of LCDC Configuration registers if WPKEY corresponds to 0x58 (“X” in ASCII). |