SX8655IWLTRT Semtech, SX8655IWLTRT Datasheet - Page 57

• Manufacturer Part Number: SX8655IWLTRT
• Description: 58T7566
• Manufacturer: Semtech

Specifications of SX8655IWLTRT

• Controller Type: Resistive Touch Screen
• Ic Interface Type: I2C, Serial
• Supply Voltage Range: 2.3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Resolution (bits): 12bit

ADVANCED COMMUNICATIONS & SENSING
Bits
Rev 1 – 25
3:0
5
4
3
2
1
0
7
6
5
4
PROXSTAT
PROXCOMPSTAT
CONVSTAT
PENSTAT
TEMPWARNINGSTAT
TEMPALARMSTAT
Variable
Reserved
AUX1DIGOUTEN
AUX2DIGOUTEN
AUX3DIGOUTEN
AUX1DIGOUT
th
July 2011
Default
0000
0
0
0
0
Table 49 : RegAux0 (Addr 0x25)
Table 48 : RegStat (Addr 0x24)
0
0
0
0
0
0
Description
Enables the digital output capability of AUX1
0 : OFF
1 : ON, Cf. AUX1DIGOUT.
Bit is ignored if TSTYPE = 1 or PROXSENSORCON = 0001
Enables the digital output capability of AUX2
0 : OFF
1 : ON, Cf. AUX2DIGOUT.
Bit is ignored if PROXSENSORCON = 0010
Enables the digital output capability of AUX3
0 : OFF
1 : ON, Cf. AUX3DIGOUT.
Bit is ignored if TSTYPE = 1 or PROXSHIELDCON = 0011
Defines the digital signal to output on AUX1 :
0000 : RegIrqSrc(0)
0001 : RegIrqSrc(1)
0010 : RegIrqSrc(2)
0011 : RegIrqSrc(3)
0100 : RegIrqSrc(4)
0101 : RegIrqSrc(5)
0110 : RegIrqSrc(6)
0111 : RegIrqSrc(7)
Gives the proximity instantaneous status:
0 : Far (or proximity sensing disabled)
1 : Close
PROXSTAT (and PROXAVG) is automatically frozen to its
current value if pen is down (whether TS or AUXi is the sensor)
PROXSTAT is NOT frozen while haptics is running, if needed
host
PROXSCANPERIOD.
When
instantaneous status :
0 : No compensation is currently pending
1 : A compensation is currently pending execution and/or
completion
When set to ‘1’, triggers a compensation for next scan period.
Gives touch/proximity conversion instantaneous status :
0 : No touch or proximity conversion is currently running
1 : A touch or proximity conversion is currently running
Gives the pen instantaneous status :
0 : Released/Up
1 : Touching/Down
Gives the temperature warning instantaneous status :
0 : Temperature is below warning threshold
1 : Temperature is above warning threshold
Gives the temperature alarm instantaneous status :
0 : Temperature is below alarm threshold
1 : Temperature is above alarm threshold
Resistive Touchscreen Controller with Proximity Sensing
57
can
read,
this
turn
SX8654/SX8655/SX8656
1000 : RegStat(0)
1001 : RegStat(1)
1010 : RegStat(2)
1011 : RegStat(3)
1100 : RegStat(4)
1101 : RegStat(5)
1110 : RegStat(6)
1111 : RegStat(7)
bit indicates
proximity
sensing
Haptics Enabled 4/5-Wire
gives
the compensation
www.semtech.com
ON/OFF
via