UR7HCTS2-S840-FG Semtech Corporation, UR7HCTS2-S840-FG Datasheet - Page 10

• Manufacturer Part Number: UR7HCTS2-S840-FG
• Description: High-Performance/ Low Power Touch Screen Controller/Digitizer
• Manufacturer: Semtech Corporation

Figure 3: SPI Packet Transmission Timing: (_SS low always).
SPI Communication Timing Parameters
Symbol
t1
t2
t2’
t3
t4
Copyright Semtech 2000-2001
DOC7-TS2-S840-DS-102
PROTOCOLS FOR THE UR7HCTS2-S840 IN SPI MODE (CON’T)
_ATN
SDATA
SCLK
_SS
t2
Description
_ATN low to _SS low
_SS low to first clock
(_SS toggles for every package)
_ATN low to first clock
(_SS low)
Last clock of transmitted
byte to next byte’s first clock
Last byte TX finish to
_ATN to high
Byte
1st
t3
Byte
2nd
Byte
Last
10
Min
50
50
50
t4
Max
5000
5000
5000
10
30
Units
ms
us
us
us
us
www.semtech.com