參數(shù)資料
型號: SED1335F
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Controller ICs
中文描述: LCD控制器芯片
文件頁數(shù): 47/148頁
文件大?。?/td> 388K
代理商: SED1335F
S-MOS Systems, Inc. 2460 North First Street San Jose, CA 95131 Tel: (408) 922-0200 Fax: (408) 922-0238
268-0.4
47
3.5 – 3.5.2
3.0 Command Description
3.5 Memory Control Commands
3.5.1 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 SED1330F/
1335F/1336F. There is no need for further MWRITE
commands or for the microprocessor 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.
Figure 30. MWRITE parameters
3.5.2 MREAD
Puts the SED1330F/1335F/1336F into the data out-
put state. On the MREAD command, the display
memory data at the cursor address is read into a
buffer in the SED1330F/1335F/1336F.
Each time the microprocessor reads the buffer, the
cursor address is incremented by the amount set by
CSRDIR and the next data byte fetched from memory,
so a sequence of data bytes may be read without
further MREAD commands or by updating the cursor
address register.
If the cursor is displayed, the read data will be from two
positions ahead of the cursor.
Figure 31. MREAD parameters
MSB
LSB
C
0
1
0
0
0
0
1
0
P1
P2
Pn
n
1
Note:
P1, P2, ..., Pn: display data.
MSB
LSB
C
0
1
0
0
0
0
1
1
P1
P2
Pn
n
1
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