SED1565 EPSON [Epson Company], SED1565 Datasheet - Page 28

• Manufacturer Part Number: SED1565
• Description: Direct display of RAM data through the display data RAM
• Manufacturer: EPSON [Epson Company]

SED1565 Series
The Busy Flag
When the busy flag is “1” it indicates that the SED1565
Series chip is running internal processes, and at this
time no command aside from a status read will be
received. The busy flag is outputted to D7 pin with the
8–26
WR
DATA
BUS Holder
Write Signal
WR
RD
DATA
Address Preset
Read Signal
Column Address
Bus Holder
Address Set
N
N
#n
Latch
N
Preset N
N
EPSON
Reading
Figure 2
Writing
N+1
N
Dummy
Read
read instruction. If the cycle time (
it is not necessary to check for this flag before each
command. This makes vast improvements in MPU
processing capabilities possible.
N+1
Increment N+1
n
N+2
Data Read
n
#n
N+2
n+1
N+2
t
CYC
Data Read
N+3
n+1
#n+1
) is maintained,
N+3
n+2