Datasheet

PAGE: 2 OF 20
• Flowchart of communications with MPU
(1) Status Read
A status check must be performed before data is read or written.
Status check
The Status of T6963C can be read from the data lines.
RD L
WR H
CE L
C/D H
Do to D7 H
The T6963C status word format is as follows:
MSB
LSB
STA7 STA6 STA5 STA4 STA3 STA2 STA1 STA0
D7 D6 D5 D4 D3 D2 D1 D0
STA0 Check command execution capability
0:Disable
1:Enable
STA1 Check data read/write Capability
0:Disable
1:Enable
STA2 Check Auto mode data read capability
0:Disable
1:Enable
STA3 Check Auto mode data write capability
0:Disable
1:Enable
STA4 Not used
－
STA5 Check controller operation capability
0:Disable
1:Enable
STA6
Error flag. Used for Screen Peek and Screen
copy commands.
0:No error
1:Error
STA7 Check the blink condition
0:Disable off
1:Normal display
(Note 1) It is necessary to check STA0 and STA1 at the same time.
There is a possibility of erroneous operation due to a hardware interrupt.
(Note 2) For most modes STA0/STA1 are used as a status check.
(Note 3) STA2 and STA3 are valid in Auto mode; STA0 and STA1 are invalid.
Status Checking flow
T6963C or equ.
driven 240X128 DOTS GRAPHIC MODULES