Texas Instruments MSP430x4xx - Manual (Page 372)

LCD_A Controller Operation
19-22 LCD_A Controller
LCDACTL, LCD_A Control Register
7 6 5 4 3 2 1 0
LCDFREQx LCDMXx LCDSON Unused LCDON
rw−0 rw−0 rw−0 rw−0 rw−0 rw−0 rw−0 rw−0
LCDFREQx Bits
7-5 LCD Frequency Select. These bits select the ACLK divider for the LCD
frequency.
000 Divide by 32
001 Divide by 64
010 Divide by 96
011 Divide by 128
100 Divide by 192
101 Divide by 256
110 Divide by 384
111
Divide by 512
LCDMXx Bits
4-3 LCD mux rate. These bits select the LCD mode.
00
Static
01 2-mux
10 3-mux
11 4-mux
LCDSON Bit 2 LCD segments on. This bit supports flashing LCD applications by turning
off all segment lines, while leaving the LCD timing generator and R33
enabled.
0
All LCD segments are off
1 All LCD segments are enabled and on or off according to their
corresponding memory location.
Unused Bit 1 Unused
LCDON Bit 0 LCD On. This bit turns on the LCD_A module.
0
LCD_A module off.
1 LCD_A module on.