UM10237_2 © NXP B.V. 2008. All rights reserved.
User manual Rev. 02 — 19 December 2008 312 o f 792
NXP Semiconductors UM10237
Chapter 12: LPC24XX LCD controller
7.9 Interrupt Mask register (LCD_INTMSK, RW - 0xFFE1 001C)

The LCD_INTMSK register controls whether various LCD interrupts occur.Setting bits in

this register enables the corresponding raw interrupt LCD_INTRAW status bit values to be

passed to the LCD_INTSTAT register for processing as interrupts.

The contents of the LCD_INTMSK register are described in Table12–268.

4 LcdBW STN LCD monochrome/color selection.
0 = STN LCD is color.
1 = STN LCD is monochrome.
This bit has no meaning in TFT mode.
0x0
3:1 LcdBpp LCD bits per pixel:
Selects the number of bits per LCD pixel:
000 = 1 bpp.
001 = 2 bpp.
010 = 4 bpp.
011 = 8 bpp.
100 = 16 bpp.
101 = 24 bpp (TFT panel only).
110 = 16 bpp, 5:6:5 mode.
111 = 12 bpp, 4:4:4 mode.
0x0
0 LcdEn LCD enable control bit.
0 = LCD disabled. Signals LCDLP, LCDDCLK, LCDFP,
LCDENAB, and LCDLE are low.
1 = LCD enabled. Signals LCDLP, LCDDCLK, LCDFP,
LCDENAB, and LCDLE are high.
See LCD power up and power down sequence for details on
LCD power sequencing.
0x0
Table 267. LCD Control register (LCD_ CTRL , RW - 0xFFE1 0018)
Bits Function Description Reset
value
Table 268. Interr upt Mask reg is t er (LCD_ INTMSK, RW - 0xFFE1 001C)
Bits Function Description Reset
value
31:5 reserved Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined. -
4 BERIM AHB master error interrupt enable.
0: The AHB Master error interrupt is disabled.
1: Interrupt will be generated when an AHB Master error occurs.
0x0
3 VCompIM Vertical compare interrupt enable.
0: The vertical compare time interrupt is disabled.
1: Interrupt will be generated when the vertical compare time (as
defined by LcdVComp field in the LCD_CTRL register) is
reached.
0x0