LCD Registers
13.5.2 CTRL Register (offset = 4h) [reset = 0h]
CTRL is shown in
and described in
.
Figure 13-20. CTRL Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
clkdiv
R/W-0h
7
6
5
4
3
2
1
0
Reserved
auto_uflow_restart
modesel
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 13-15. CTRL Register Field Descriptions
Bit
Field
Type
Reset
Description
31-16
Reserved
R
0h
15-8
clkdiv
R/W
0h
Clock divisor
Raster mode: Values of 2 through 255 are permitted and resulting
pixel clock is lcd_clk/2 through lcd_clk/255
LIDD mode: Values of 0 through 255 are permitted with resulting
MCLK of lcd_clk/1 through lcd_clk/255 where both 0 and 1 result in
lcd_clk/1
7-2
Reserved
R/W
0h
1
auto_uflow_restart
R/W
0h
0 = On an underflow, the software has to restart the module 1 = On
an underflow, the hardware will restart on the next frame
0
modesel
R/W
0h
LCD Mode select
0 = LCD Controller in LIDD Mode 1 = LCD Controller in Raster Mode
1131
SPRUH73H – October 2011 – Revised April 2013
LCD Controller
Copyright © 2011–2013, Texas Instruments Incorporated