Cypress S6J3200 Series, Manual

Page: 1087 / 1355

CHAPTER 28:LCD Controller
1086 S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
Setting procedure 3 Program 3
With the 1/4 duty drive method, make the LCD display a four-digit number,
"0 1 2 3 ".
void LCD_sample_3(void)
{
Initial setting (LCD) LCD_initial();
}
<Initial setting> void lcdc_initial(void)
1. - PORT Register name {
COM, SEG output setting for the
port
See 6.8. and 6.9.
PORT_SETTING_LCDC_OUT();
/* Set the LCD controller pin to */
/* peripheral output. */
2. - Setting of VRAM Register name
Setting of VRAM VRAM00-VRAM03 IO_VRAM00 = 0x9F;
IO_VRAM01 = 0x88;
IO_VRAM02 = 0xB6;
IO_VRAM03 = 0xBC;
3. - Setting of control register registername . bit name
Fixed value LCR1 IO_LCR1.byte = 0xFF; /* Set to FF. */
Bias setting LCDCMR IO_LCDCMR. byte = 0x00; /* 1/3 bias */
Setting of control register LCR0 IO_LCR0.byte = 0x0C; /* Setting value =0000_1100 */
/* bit7 = 0 Clock selection Main clock */
. LCEN /* bit6 = 0 LCEN Display stopped with PSS mode */
. VSEL /* bit5 = 0 VSEL Internal division resistor disconnected */
. BK /* bit4 = 0 BK Blanking selection bit */
. MS[1:0] /* bit3-2 = 11 MS[1:0] 1/4 duty mode */
. FP[1:0] /* bit1-0 = 00 FP[1:0] */
}
<Others>
(Note)
Clock-related setting and setting of _set_il (numerical value)
in advance are required. See chapter of "CLOCK SYSTEM"
and chapter of "INTERRUPT CONTROLLER" for details.