S1D13700 Epson Electronics America, Inc., S1D13700 Datasheet - Page 44

• Manufacturer Part Number: S1D13700
• Description: LCD Controller ICs
• Manufacturer: Epson Electronics America, Inc.

INSTRUCTION SET
The cursor address register can only be modified by the
CSRW command, and by the automatic increment after
an MREAD or MWRITE command. It is not affected by
display scrolling.
8.4.2. 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.
8.5. Memory Control Commands
8.5.1. MWRITE
The microprocessor may write a sequence of data bytes
to display memory by issuing the MREAD command and
then writing the bytes to the S1D13305 series. There is no
need for further MWRITE commands or for the micro-
38
P1
P2
C
Note:
P1, P2, ..., Pn: display data.
MSB
P1
P2
Pn
C
MSB
A15 A14 A13 A12 A11 A10
A7
0
0
Figure 24. MWRITE parameters
Figure 23. CSRR parameters
A6
1
1
A5
0
0
A4
0
EPSON
0
A3
0
0
If a new address is not set, display memory accesses will
be from the last set address or the address after previous
automatic increments.
processor to update the cursor address register after each
byte as the cursor address is automatically incremented
by the amount set with CSRDIR, in preparation for the
next data write.
A2
1
0
A1
A9
1
1
A0 (CSRL)
A8 (CSRH)
1
LSB
0
LSB
n
1
S1D13305 Series
Technical Manual