sx8675iwltrt Semtech Corporation, sx8675iwltrt Datasheet - Page 47

• Manufacturer Part Number: sx8675iwltrt
• Description: Haptics Enabled Multitouch 4/5-wire Resistive Touchscreen Controller With Proximity Sensing
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
The 3 bits CHAN(2:0) are defined in the previous table and show which channel data is referenced. The channel
data D(11:0) is of unsigned format and corresponds to a value between 0 and 4095.
The chip will return 0xFFFF in case of invalid data; this occurs when:
Rev 1 – 25
host tries to read channels which have not been converted. For example if the chip converts X and Y
and the host tries to read X, Y, Z1 and Z2.
a conversion has been done while the screen wasn’t touched , i.e. pen up (not detected).
th
July 2011
0
CHAN(2:0)
RD0
Figure 57 – Channel Data Format
D(11:8)
Resistive Touchscreen Controller with Proximity Sensing
47
SX8674/SX8675/SX8676
D(7:0)
RD1
Haptics Enabled Multitouch 4/5-Wire
www.semtech.com