參數(shù)資料
型號(hào)： AT42QT1070-SSU
廠商： ATMEL CORP
元件分類(lèi)： 速度傳感器和接近開(kāi)關(guān)
英文描述： PROXIMITY SENSOR-CAPACITIVE, 0.6-2.6V, RECTANGULAR, SURFACE MOUNT
封裝： 0.150 INCH, ROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14
文件頁(yè)數(shù)： 13/38頁(yè)
文件大小： 509K
代理商： AT42QT1070-SSU
20
9596A–AT42–10/10
AT42QT1070
5.4
Address 2: Detection Status
CALIBRATE: This bit is set during a calibration sequence.
OVERFLOW: This bit is set if the time to acquire all key signals exceeds 8 ms.
TOUCH: This bit is set if any keys are in detect.
5.5
Address 3: Key Status
KEY0 – 6: bits 0 to 6 indicate which keys are in detection, if any. Touched keys report as 1,
untouched or disabled keys report as 0.
5.6
Address 4 – 17: Key Signal
KEY SIGNAL: addresses 4 – 17 allow key signals to be read for each key, starting with key 0.
There are two bytes of data for each key. These are the key’s 16-bit key signals which are
accessed as two 8-bit bytes, stored MSByte first. These addresses are read-only.
5.7
Address 18 – 31: Reference Data
REFERENCE DATA: addresses 18 – 31 allow reference data to be read for each key, starting
with key 0. There are two bytes of data for each key. These are the key’s 16-bit reference data
which is accessed as two 8-bit bytes, stored MSByte first. These addresses are read-only.
Table 5-4.
Detection Status
Address
b7b6b5b4b3b2
b1
b0
2
CALIBRATE OVERFLOW
–––––
TOUCH
Table 5-5.
Key Status
Address
b7
b6
b5
b4
b3
b2
b1
b0
3
Reserved
KEY6
KEY5
KEY4
KEY3
KEY2
KEY1
KEY0
Table 5-6.
Key Signal
Address
b7
b6
b5
b4
b3
b2
b1
b0
4
MSByte OF KEY SIGNAL FOR KEY 0
5
LSByte OF KEY SIGNAL FOR KEY 0
6 – 17
MSByte/LSByte OF KEY SIGNAL FOR KEYS 1 – 6
Table 5-7.
Reference Data
Address
b7
b6
b5
b4
b3
b2
b1
b0
18
MSByte OF REFERENCE DATA FOR KEY 0
19
LSByte OF REFERENCE DATA FOR KEY 0
20 – 31
MSByte/LSByte OF REFERENCE DATA FOR KEYS 1 – 6
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