hd66717 Renesas Electronics Corporation., hd66717 Datasheet - Page 46

• Manufacturer Part Number: hd66717
• Description: Low-power Dot-matrix Liquid Crystal Display Controller/driver -
• Manufacturer: Renesas Electronics Corporation.

HD66717
498
(Input)
(Input)
(Input)
(Input)
(Input)
(Input)
SDA
SDA
SCL
SCL
Note: Adjust the transfer rate so that the HD66717 can complete instruction 1 before the 8th bit of
CS*
CS*
Transfer start
Start
instruction 2 is transferred.
Figure 23 Clock-Synchronized Serial Interface Timing Sequence
ID5 ID4 ID3 ID2 ID1 ID0 RS
1 2 3 4 5 6 7 8
1
2
1st byte
ID code
Device
3
Start byte
4
5
6
RS
9 10 11 12 13 14 15 16
7
(a) Basic data transfer (receive) timing
(b) Consecutive data transfer timing
0
Instruction 1
8
MSB
D7 D6 D5 D4
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1st instruction
Instruction 1 execution
time
17 18 19
D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Instruction 2
20 21 22 23 24
Instruction
Instruction 2 execution
time
25 26 27 28 29 30 31 32
2nd instruction
Instruction 3
Transfer end
End