mk712 Integrated Device Technology, mk712 Datasheet - Page 13

• Manufacturer Part Number: mk712
• Description: Touch Screen Controller
• Manufacturer: Integrated Device Technology

Register Interface Timing
IDT™ / ICS™ TOUCH SCREEN CONTROLLER
MK712
TOUCH SCREEN CONTROLLER
Notes:
1. RD edges may precede or follow CS edges.
2. WR edges may precede or follow CS edges.
3. Either TRDW or TRDWC specification must be met.
4. Either TRDHW or TRDHWC specification must be met.
5. It is not permitted to have both RD and WR low at the same time.
Read and Write Cycles
Read Cycle Only
Write Cycle Only
Number
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
TRASC
TRAHC
TRCCY
TRSCR
TRRD
TRCHR1
TRCHR2
TRDC
TRDR
TRDHC
TRDHR
TRCSW
TRWR
TRCHW
TRWH
TRWCY
TRDW
TRDHW
TRDWC
TRDHWC Data Hold from CS High
Symbol
Address Setup to CS Low
Address Hold from CS High
CS High to CS Low
CS Low to RD Low
RD Pulse Width
RD High to CS High
RD High to CS Low
CS Low to Data
RD Low to Data
CS High to Data Release
RD High to Data Release
CS Low to WR Low
WR Pulse Width
WR High to CS High
WR High to CS Low
WR High to WR Low
Data Setup to WR High
Data Hold from WR High
Data Setup to CS High
Description
13
Min.
40
15
15
40
10
40
40
10
40
40
15
15
5
0
0
2
2
0
Max.
35
35
20
20
TOUCH SCREEN CONTROL
MK712
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note
1
1
3
4
3
4
2
REV L 070805