th July 2011 56 www.semtech.com SX8657/SX8658 Haptics " />
參數(shù)資料
型號： SX8657IWLTRT
廠商： Semtech
文件頁數(shù)： 52/61頁
文件大?。?/td> 0K
描述： IC TOUCH SCREEN 12BIT 20QFN
標準包裝： 1
類型： 電阻式，觸感驅(qū)動器
觸摸面板接口： 4，5 線
輸入數(shù)/鍵： 1 TSC，雨刷，鑰匙
分辨率（位）： 12 b
評估套件： *
數(shù)據(jù)接口： I²C，串行
電壓基準： 內(nèi)部
電源電壓： 2.3 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 20-QFN（4x4）
包裝： 標準包裝
其它名稱： SX8657IWLDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
th July 2011
56
www.semtech.com
SX8657/SX8658
Haptics Enabled 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
5
PROXSTAT
0
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
can
turn
proximity
sensing
ON/OFF
via
PROXSCANPERIOD.
4
PROXCOMPSTAT
0
When
read,
this
bit
indicates
gives
the
compensation
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.
3
CONVSTAT
0
Gives touch/proximity conversion instantaneous status :
0 : No touch or proximity conversion is currently running
1 : A touch or proximity conversion is currently running
2
PENSTAT
0
Gives the pen instantaneous status :
0 : Released/Up
1 : Touching/Down
1
TEMPWARNINGSTAT
0
Gives the temperature warning instantaneous status :
0 : Temperature is below warning threshold
1 : Temperature is above warning threshold
0
TEMPALARMSTAT
0
Gives the temperature alarm instantaneous status :
0 : Temperature is below alarm threshold
1 : Temperature is above alarm threshold
Table 48 : RegStat (Addr 0x24)
Bits
Variable
Default
Description
7
Reserved
0
6
AUX1DIGOUTEN
0
Enables the digital output capability of AUX1
0 : OFF
1 : ON, Cf. AUX1DIGOUT.
Bit is ignored if TSTYPE = 1 or PROXSENSORCON = 0001
5
AUX2DIGOUTEN
0
Enables the digital output capability of AUX2
0 : OFF
1 : ON, Cf. AUX2DIGOUT.
Bit is ignored if PROXSENSORCON = 0010
4
AUX3DIGOUTEN
0
Enables the digital output capability of AUX3
0 : OFF
1 : ON, Cf. AUX3DIGOUT.
Bit is ignored if TSTYPE = 1 or PROXSHIELDCON = 0011
3:0
AUX1DIGOUT
0000
Defines the digital signal to output on AUX1 :
0000 : RegIrqSrc(0)
1000 : RegStat(0)
0001 : RegIrqSrc(1)
1001 : RegStat(1)
0010 : RegIrqSrc(2)
1010 : RegStat(2)
0011 : RegIrqSrc(3)
1011 : RegStat(3)
0100 : RegIrqSrc(4)
1100 : RegStat(4)
0101 : RegIrqSrc(5)
1101 : RegStat(5)
0110 : RegIrqSrc(6)
1110 : RegStat(6)
0111 : RegIrqSrc(7)
1111 : RegStat(7)
Table 49 : RegAux0 (Addr 0x25)
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