ML63611 User’s Manual
Chapter 13 LCD Driver (LCD)
13 – 8
OPTION B (D): 1.5 V (3.0 V), With regulator
circuit for LCD bias
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
(2) Display control register 1 (DSPCON1)
DSPCON1 is a 4-bit special function register (SFR) used to select the LCD driver duty.
At system reset, bits 0 and 1 of DSPCON1 are initialized to “0”.
Note:
When 1/2 duty is selected, select 1/2 bias with the display control register 0.
(3) Display contrast register (DSPCNT)
DSPCNT is a 4-bit special function register (SFR) used to adjust display contrast.
At system reset, each bit of DSPCNT is initialized to “0”.
This adjustment function is disabled in the OPTION A and OPTION C.
—
—
DT1
DT0
DSPCON1 (091H)
(R/W)
Duty select
bit 1 bit 0
0 0 : 1/4 duty (initial value)
0 1 : 1/1 duty
1 0 : 1/2 duty
1 1 : 1/3 duty
bit 3
bit 2
bit 1
bit 0
!
CN3
CN2
CN1
CN0
DSPCNT (092H)
(R/W)
Contrast select
bit 3 bit 2 bit 1 bit 0
0 0 0 0 : Light (initial value)
0 0 0 1 :
0 0 1 0 :
0 0 1 1 :
0 1 0 0 :
0 1 0 1 :
0 1 1 0 :
0 1 1 1 :
1 0 0 0 :
1 0 0 1 :
1 0 1 0 :
1 0 1 1 :
1 1 0 0 :
1 1 0 1 :
1 1 1 0 :
1 1 1 1 : Dark
bit 3
bit 2
bit 1
bit 0
Note: This function is not available in the OPTION A
and OPTION C.
Summary of Contents for ML63611
Page 9: ...Chapter 1 Overview...
Page 33: ...Chapter 2 CPU and Memory Spaces...
Page 42: ...Chapter 3 CPU Control Functions...
Page 49: ...Chapter 4 Interrupt INT...
Page 62: ...Chapter 5 Clock Generator Circuit OSC...
Page 71: ...Chapter 6 Time Base Counter TBC...
Page 75: ...Chapter 7 Timers TIMER...
Page 99: ...Chapter 8 100 Hz Timer Counter 100HzTC...
Page 103: ...Chapter 9 Watchdog Timer WDT...
Page 108: ...Chapter 10 Ports INPUT I O PORT...
Page 140: ...Chapter 11 Melody Driver MELODY...
Page 152: ...Chapter 12 Serial Port SIO...
Page 179: ...Chapter 13 LCD Driver LCD...
Page 200: ...Chapter 14 Battery Low Detect Circuit BLD...
Page 204: ...Chapter 15 Power Supply Circuit POWER...
Page 215: ...Chapter 16 A D Converter ADC...
Page 238: ...Appendixes...