Microchip Technology MA240029 데이터 시트
2010-2011 Microchip Technology Inc.
DS39996F-page 273
PIC24FJ128GA310 FAMILY
bit 2-0
LRLAT<2:0>
: LCD Reference Ladder A Time Interval Control bits
Sets the number of 32 clock counts when the A Time Interval Power mode is active.
For Type-A Waveforms (WFT = 0):
111
For Type-A Waveforms (WFT = 0):
111
= Internal LCD reference ladder is in A Power mode for 7 clocks and B Power mode for 9 clocks
110
= Internal LCD reference ladder is in A Power mode for 6 clocks and B Power mode for 10 clocks
101
= Internal LCD reference ladder is in A Power mode for 5 clocks and B Power mode for 11 clocks
100
= Internal LCD reference ladder is in A Power mode for 4 clocks and B Power mode for 12 clocks
011
= Internal LCD reference ladder is in A Power mode for 3 clocks and B Power mode for 13 clocks
010
= Internal LCD reference ladder is in A Power mode for 2 clocks and B Power mode for 14 clocks
001
= Internal LCD reference ladder is in A Power mode for 1 clock and B Power mode for 15 clocks
000
= Internal LCD reference ladder is always in B Power mode
For Type-B Waveforms (WFT = 1):
111
111
= Internal LCD reference ladder is in A Power mode for 7 clocks and B Power mode for 25 clocks
110
= Internal LCD reference ladder is in A Power mode for 6 clocks and B Power mode for 26 clocks
101
= Internal LCD reference ladder is in A Power mode for 5 clocks and B Power mode for 27 clocks
100
= Internal LCD reference ladder is in A Power mode for 4 clocks and B Power mode for 28 clocks
011
= Internal LCD reference ladder is in A Power mode for 3 clocks and B Power mode for 29 clocks
010
= Internal LCD reference ladder is in A Power mode for 2 clocks and B Power mode for 30 clocks
001
= Internal LCD reference ladder is in A Power mode for 1 clock and B Power mode for 31 clocks
000
= Internal LCD reference ladder is always in B Power mode
REGISTER 21-6:
LCDREF: LCD REFERENCE LADDER CONTROL REGISTER (CONTINUED)
Note 1:
When using the external resistor ladder biasing, the LCDBIASx pins should be made analog and the
respective TRIS bits should be set as inputs.
respective TRIS bits should be set as inputs.