RS_Color liquid crystal display controller (CLCD)
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33.6.12 LCDMIS
register
LCDMIS is a read-only (RO) register. It is a bit-by-bit logical AND of the LCDRIS register
and the LCDIMSC register. Interrupt lines correspond to each interrupt. A logical OR of all
interrupts is provided to the system interrupt controller.
33.6.13 LCDICR
register
The LCDICR is a write-only (WO) register. Writing a logic 1 to the relevant bit clears the
corresponding interrupt.
Table 684.
LCDRIS register bit assignments
Bit
Name
Reset
value
Description
[13:05]
[04]
MBERROR
1’h0
AHB bus master error status. Set when the AHB
master encounters a bus error response from a
slave.
[03]
VCOMP
1’h0
Vertical compare. Set when one of the four vertical
regions, selected through the LCD control register,
is reached.
[02]
LNBU
1’h0
LCD next address base update, mode dependent,
set when the current base address registers have
been successfully updated by the next address
registers. Signifies that a new next address can be
loaded if double buffering is in use.
[01]
FUF
1’h0
FIFO underflow, set when either the upper or lower
DMA FIFOs have been read accessed hen empty
causing an underflow condition to occur.
[00]
-
-
Reserved, read as zero
Table 685.
LCDMIS register bit assignments
Bit
Name
Reset
value
Description
[31:05]
-
-
Reserved, read as zero
[04]
MBERRORINTR
1’h0
AHB Master errors interrupt status bit.
[03]
VCOMPINTR
1’h0
Vertical compare interrupt status bit.
[02]
LNBUINTR
1’h0
LCD next base address update interrupt status bit.
[01]
FUFINTR
1’h0
FIFO underflows interrupt status bit.
[00]
-
-
Reserved, read as zero.