HD66712 Datasheet, PDF (40/88 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver

HD66712U
i) Continuous data write by boring processing
SCLK
(input)
SID
(input)
SOD
(output)
Start
byte
Instruction (1)
1st byte 2nd byte
Start
byte
Instruction (1)
Execution
time
Busy
read
Start
byte
Instruction (2)
1st byte 2nd byte
Instruction waiting time (not busy state)
ii) Continuous data write by CPU wait insert
SCLK
(input)
SID
(input)
Wait
Wait
Start
byte
Instruction (1)
1st byte 2nd byte
Instruction (2)
1st byte 2nd byte
Instruction (1)
Execution time
Instruction (3)
1st byte 2nd byte
Instruction (2)
Execution time
Instruction (3)
Execution time
iii) Continuous data read by CPU wait insert
SCLK
(input)
SID
(input)
Start
byte
Wait
SOD
(output)
Instruction (1)
Execution time
Wait
Data
read (1)
Instruction (2)
Execution time
Data
read (2)
Figure 15 Procedure for Continuous Data Transfer
403