This register at 0x10000050 controls LCD
power and multiplexing and controls the interface to the touchscreen
as listed in Table 4.17.
See Appendix E LCD Kits for
details on the CLCD control signals.
Table 4.17. SYS_CLCD register
| Bits | Access | Description |
|---|---|---|
| [31:14] | - | Reserved. Use read-modify-write to preserve value. |
| [13] | Read | TSnDAV indicates that data is available from the touchscreen controller. |
| [12:8] | Read | CLCDID[4:0] (returns the setting of the ID links on an interface board) Value Display 0 320x240 QVGA 1 640x480 VGA 2 220x176 3-31 Reserved |
| [7] | Read/write | SSP expansion (if SSPnCS is LOW) |
| [6] | Read/write | Touchscreen enable (TSnSS) |
| [5] | Read/write | VDDNEGSWITCH (power control for LCD interface) |
| [4] | Read/write | PWR3V5VSWITCH (power control for LCD interface) |
| [3] | Read/write | VDDPOSSWITCH (power control for LCD interface) |
| [2] | Read/write | nLCDIOON (power control for LCD interface) |
| [1:0] | Read/write | LCD Mode [1:0] Bit 1 Bit 0 Display mode 0 0 8:8:8 0 1 5:5:5:1 1 0 5:6:5, red LSB 1 1 5:6:5, blue LSB |
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