AT42QT1111-MU Atmel, AT42QT1111-MU Datasheet - Page 27

• Manufacturer Part Number: AT42QT1111-MU
• Description: IC TOUCH SENSOR 11KEY QFN
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of AT42QT1111-MU

• Touch Panel Interface: 10, 2-Wire
• Number Of Inputs/keys: 11 Key
• Data Interface: Serial, SPI™
• Voltage Reference: Internal
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 12mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Output Type: Logic
• Interface: SPI
• Input Type: Logic
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT42QT1111-MU; AT42QT1111-MUTR

6.11
6.12
6.13
6.14
6.15
9571A–AT42–02/10
Detect Output States (0xC6)
Last Command (0xC7)
Setups (0xC8)
Device ID (0xC9)
Firmware Version (0xCA)
This command returns a byte that indicates which PWM signal is applied to each DETECT pin.
Table 6-9.
DET_n: 0 = “Out of Detect” PWM is output, 1 = the “In Detect” PWM is output.
Note:
This command returns the previous 1-byte command that was received from the host. Note that
this command does not return itself.
Table 6-10.
This command returns the 42 bytes of the setups table, starting with address 0, with the most
significant bit first.
This command returns 1 byte containing the device ID (0x89).
Table 6-11.
Returns 1 byte containing the firmware version.
Table 6-12.
Byte 0
Byte 0
Byte 0
Byte 0
Note: During “LED Detect Hold Time” or “LED Fade”, the report indicates the new state
of the DETECT pin. For example, if the DETECT output is in “LED Detect Hold Time”
before switching to “Out of Detect” PWM, the reported state is “0”.
Bit 7
Bit 7
Bit 7
Bit 7
Reference for Key “k” Report Format
Reference for Key “k” Report Format
Device ID Report Format
Firmware Version Report Format
DET_6
Bit 6
Bit 6
Bit 6
Bit 6
Major Version
AT42QT1111-MU/AT42QT1111-AU
DET_5
Bit 5
Bit 5
Bit 5
Bit 5
DET_4
Bit 4
Bit 4
Bit 4
Bit 4
Device ID = 0x89
Last Command
DET_3
Bit 3
Bit 3
Bit 3
Bit 3
DET_2
Bit 2
Bit 2
Bit 2
Bit 2
Minor Version
DET_1
Bit 1
Bit 1
Bit 1
Bit 1
DET_0
Bit 0
Bit 0
Bit 0
Bit 0
27