MK712SI Просмотр технического описания (PDF) - Integrated Circuit Systems
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MK712SI Datasheet PDF : 16 Pages
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I CR O C LOC K
MK712
Touch Screen Controller
Register Interface Timing
#
Symbol
Description
READ AND WRITE CYCLES
Min
Max
Unit Note
1 TRASC
Address Setup to CS Low
2 TRAHC
Address Hold from CS High
3 TRCCY
CS High to CS Low
READ CYCLE ONLY
5
ns
0
ns
40
ns
4 TRSCR
CS Low to RD Low
5 TRRD
RD Pulse Width
6 TRCHR1 RD High to CS High
7 TRCHR2 RD High to CS Low
8 TRDC
CS Low to Data
9 TRDR
RD Low to Data
10 TRDHC
CS High to Data Release
11 TRDHR
RD High to Data Release
WRITE CYCLE ONLY
10
ns
40
ns
0
ns
40
ns
35
ns
35
ns
2
20
ns
1
2
20
ns
1
12 TRCSW
13 TRWR
14 TRCHW
15 TRWH
16 TRWCY
17 TRDW
18 TRDHW
19 TRDWC
20 TRDHWC
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
Data Hold from CS High
10
ns
40
ns
0
ns
2
40
ns
40
ns
15
ns
3
15
ns
4
15
ns
3
15
ns
4
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.
MDS 712 I
11
Revision 100899 Printed 11/16/00
Integrated Circuit Systems, Inc.•525 Race St.•San Jose•CA•95126•(408)295-9800tel•www.icst.com
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