LC75817E Datasheet, PDF (14/43 Pages) Sanyo Semicon Device – 1/8 to 1/10 Duty Dot Matrix LCD Display Controller/Driver with Key Input Function

LC75817E, 75817W
• DCRAM data write ... <Specifies the DCRAM address and stores data at that address>
Code
D40 D41 D42 D43 D44 D45 D46 D47 D48 D49 D50 D51 D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63
AC0 AC1 AC2 AC3 AC4 AC5 AC6 AC7 DA0 DA1 DA2 DA3 DA4 DA5 X X IM X X X 0 1 0 1
DA0 to DA5: DCRAM address
X: don’t care
DA0
DA1
DA2
DA3
DA4
DA5
LSB
↑
Least significant bit
MSB
↑
Most significant bit
AC0 to AC7: DCRAM data (character code)
AC0
AC1
AC2
AC3
AC4
AC5
AC6
AC7
LSB
↑
Least significant bit
MSB
↑
Most significant bit
This instruction writes the 8 bits of data AC0 to AC7 to DCRAM. This data is a character code, and is converted to a
5 × 7, 5 × 8, or 5 × 9 dot matrix display data using CGROM or CGRAM.
IM: Setting the method of writing data to DCRAM
IM
DCRAM data write method
0 Normal DCRAM data write (Specifies the DCRAM address and writes the DCRAM data.)
1 Increment mode DCRAM data write (Increments the DCRAM address by +1 each time data is written to DCRAM.)
Notes: *14.
· DCRAM data write method when IM = 0
CCB address
(1)
24 bits
CCB address
(1)
24 bits
CCB address
(1)
24 bits
CCB address
(1)
24 bits
Instruction
execution time
Instruction
execution time
Instruction
execution time
DCRAM data
write finishes
DCRAM data
write finishes
DCRAM data
write finishes
Instruction
execution time
DCRAM data
write finishes
· DCRAM data write method when IM = 1 (Instructions other than the “DCRAM data write” instruction cannot be
executed.)
CCB address
(1)
24 bits
CCB address
CCB address
(2)
(2)
8 bits
8 bits
CCB address
CCB address
CCB address
(2)
(2)
8 bits
8 bits
(3)
16 bits
Instruction
execution time
DCRAM data
write finishes
Instruction
execution
time
Instruction
execution
time
Instruction
execution time
Instruction
execution
time
Instruction
execution time
DCRAM data
write finishes
DCRAM data
write finishes
DCRAM data
write finishes
DCRAM data
write finishes
DCRAM data
write finishes
Instructions other than the “DCRAM data write” instruction cannot be executed.
No. 6144-14/43