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參數(shù)資料
| 型號： | AT42QT1110-MZ |
| 廠商： | ATMEL CORP |
| 元件分類： | 速度傳感器和接近開關(guān) |
| 英文描述： | PROXIMITY SENSOR-CAPACITIVE, 0-5V, SQUARE, SURFACE MOUNT |
| 封裝： | 5 X 5 MM, 0.50 MM PITCH, ROHS COMPLIANT, MO-220VHHD-2, QFN-32 |
| 文件頁數(shù)： | 17/46頁 |
| 文件大?。?/td> | 657K |
| 代理商： | AT42QT1110-MZ |
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24
9570I–AT42–03/10
AT42QT1110-MZ/AT42QT1110-AZ
6.
Report Requests
6.1
Introduction
The host can request reports from the QT1110, as summarized in Table 6-1.
Note that SPI communications are full-duplex, so the host must transmit on the MOSI pin to
keep the communications active, while reading data from the QT1110 on the MOSI pin. Failure
to do this within 100 ms will cause the device to assume that the exchange has been abandoned
and reset the SPI interface. The host should therefore send one or two “NULL” bytes, as
appropriate, on the MOSI line as it receives the 1- or 2-byte report data from the device.
6.2
First Key (0xC0)
This command returns 1-byte report in the format shown in Table 6-2.
DETECT: 0 = no key in detect; 1 = there is a key in detect.
NUMKEY: indicates the number of keys in detect:
0 = only one key is in detect (specified by “KEY_NUM”)
1 = more than one key in detect.
ERROR: 0 = there are no keys in an error state; 1 = at least one key is in error state.
KEY_NUM: the key number (0 to 10) of the key in detect (if there is only one), or the number of
the first key to go into detection when there are more than one.
Table 6-1.
Report Requests
Command
Code
Note
Data Returned
Send First Key
0xC0
Returns the first detected key
1 byte
Send All keys
0xC1
Returns all keys
2-byte bitfield
Device Status
0xC2
Returns the device status
1-byte bitfield
EEPROM CRC
0xC3
Returns the EEPROM CRC
1 byte
RAM CRC
0xC4
Returns the RAM CRC
1 byte
Error Keys
0xC5
Returns the error keys
2-byte bitfield
Signal for Key “k”'
0x2k
Returns the signal for key “k”
2-byte number
Reference for Key “k”
0x4k
Returns the reference for key “k”
2-byte number
Status for Key “k”
0x8k
Returns error conditions/touch indication
1 byte
Detect Output States
0xC6
Returns the detect output states
1 byte
Last Command
0xC7
Returns the last command sent to QT1110
1 byte
Setups
0xC8
Returns the setup data
42 bytes
Device ID
0xC9
Returns the device ID
1 byte
Firmware Version
0xCA
Returns the firmware version
1 byte
Table 6-2.
Send First Key Report Format
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 0
DETECT
NUMKEY
ERROR
KEY_NUM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT42QT1111-AU | 功能描述:電容觸摸傳感器 QTouch 11 Key Touch Sensor IC RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍: |
| AT42QT1111-AU QS383 | 制造商:Atmel Corporation 功能描述:QTOUCH 11 KEY TOUCH SENSOR IC |
| AT42QT1111MU | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:QTouch? 11-key Sensor IC |
| AT42QT1111-MU | 功能描述:電容觸摸傳感器 QTouch 11 Key Touch Sensor IC RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍: |
| AT42QT1111-MU QS384 | 制造商:Atmel Corporation 功能描述:QTOUCH 11 KEY TOUCH SENSOR IC |
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