SED1330F Datasheet, PDF (46/148 Pages) List of Unclassifed Manufacturers – LCD Controller ICs

3.0 Command Description
M
AB
XY
Z
A
B
XY
M=0
N=0
Z
A
B
XY
Display width
N
M/N is the number of bits (dots) that parameter 1 (P1)
is incremented/decremented by.
3.4 – 3.4.2
Note that the microprocessor cannot directly access
the display memory.
The MREAD and MWRITE commands use the ad-
dress in this register.
The cursor address register can only be modified by
the CSRW command, and by the automatic incre-
ment after an MREAD or MWRITE command. It is not
affected by display scrolling.
If a new address is not set, display memory accesses
will be from the last set address or the address after
previous automatic increments.
Figure 27. Horizontal scrolling
3.4 Drawing Control Commands
3.4.1 CSRW
The 16-bit cursor address register contains the dis-
play memory of the data at the cursor position as
shown in Figure 28.
MSB
LSB
C01000110
P1 A7 A6 A5 A4 A3 A2 A1 A0 (CSRL)
P2 A15 A14 A13 A12 A11 A10 A9 A8 (CSRH)
3.4.2 CSRR
Reads from the cursor address register. After issuing
the command, the data read address is read twice, for
the low byte and then the high byte of the register.
MSB
LSB
C0 10 0 0 1 11
P1 A7 A6 A5 A4 A3 A2 A1 A0 (CSRL)
P2 A15 A14 A13 A12 A11 A10 A9 A8 (CSRH)
Figure 29. CSRR parameters
Figure 28. CSRW parameters
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