ST7565S
The Busy Flag
When the busy flag is “1” it indicates that the ST7565S 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 read instruction. If the cycle time
(tCYC) is maintained, it is not necessary to check for this flag
before each command. This makes vast improvements in
MPU processing capabilities possible.
Writing
WR
N
N+1
N+2
N+3
DATA
BUS Holder
Write Signal
N
N+1
N+2
N+3
Reading
WR
RD
DATA
N
N
n
n+1
Address Preset
Read Signal
Column Address
Preset N
Increment N+1
N+2
Bus Holder
N
n
n+1
n+2
Address Set
#n
Dummy
Read
Data Read
#n+1
Data Read #n
Figure 2
Ver 0.6c
25/72
2009/09/07
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
