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Tuesday, October 18, 2011

Terms used in LCD


Terms used in LCD
display data RAM
DD RAM
display data RAM
CG RAM
character generator RAM
ACC
CG RAM address
ADD
DD RAM address corresponding to cursor address
AC
address counter used for both CG and DD
1/D = 1 for increment
1/D = 0 for decrement
S = 1 accompanies display shift

S/C = 1 display shift
S/C = 0 for cursor shift
R/L = 1 shift to right
R/L = 0 shift to left
DL = 1 8 bits
DL = 0 4 bits
F = 1 5x10 dots
F = 0 5x7 dots
BF = 1 Internal operation
BF = 0 can accept instruction

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