ra8835 Topway Display, ra8835 Datasheet - Page 36

• Manufacturer Part Number: ra8835
• Description: Dot Matrix Lcd Controller
• Manufacturer: Topway Display

RAiO TECHNOLOGY INC.
Version 1.7
7-7 Status Flag
The RA8835 series has a single bit status flag.
D6: X line standby
The D6 status flag is HIGH for the TC/R-C/R cycles at the end of each line where the RA8835 series is
not reading the display memory. The microprocessor may use this period to update display memory
without affecting the display, however it is recommended that the display be turned off when refreshing
the whole display.
XSCL
LP
CS
0
Figure 7-6: C/R to TC/R Time Difference
D7
A0
0
X
Figure 7-4: Crystal Oscillator
D6
Figure 7-5: Status Flag
tm
RD
XG
X
0
C
G
RA8835
X
36/86
0: Period of retrace lines
1: Period of display
X
X
XD
t
C
TC/R
D
D
X
6
Load impedance =700? (max)
(flag)
t
X
C/R
D0
C
C
G
D
=3 to 20 pF
=2 to 18 pF
X:Don＇t care
Dot Matrix LCD Controller
www.raio.com.tw
RA8835