qt1060 Quantum Research Group, qt1060 Datasheet - Page 18

• Manufacturer Part Number: qt1060
• Description: Qtouch? 6-channel Sensor Ic
• Manufacturer: Quantum Research Group

5.13
5.14
18
Address 23: I/O Mask
Address 24: Key Mask
AT42QT1060
Table 5-13.
Table 5-14.
A value of zero causes the device to enter SLEEP mode where no measurements are
performed.
A value of 255 causes the device to enter Free-run mode where measurements are continuously
performed without entering a low power mode between measurements. This provides the fastest
response time but also the highest power consumption.
Default: 2 (32 ms between key acquisitions)
IO0 – 6: these bits control the direction of the IO pins. A
input. See
Default: 0 (all IO's are set as inputs, when using the I
CAL: this bit controls whether the CAL bit causes a CHG transition.
KEY0 – 5 (Key Mask): these bits control whether a change in the corresponding bit in the
detection status register generates a transition on the CHG line. A
cause a CHG request, a 0 stops the corresponding bit from causing a CHG request.
Default: 0xBF (all bits create a CHG request)
Address
Address
LP7 – 0
...254
23
24
255
0
1
2
3
4
Section 5.24 on page 21
(all IO's are set as outputs (0x7F), when using the standalone mode)
Reserved
I/O Mask
Key Mask
CAL
Free-run
b7
b7
SLEEP
4.064s
16 ms
32 ms
48 ms
64 ms
Mode
Reserved
IO6
b6
b6
KEY5
for I/O register precedence and example usage.
IO5
b5
b5
KEY4
IO4
b4
b4
2
C-compatible mode)
KEY3
IO3
1
b3
b3
sets the pin as an output, a 0 as an
KEY2
IO2
b2
b2
1
allows the status bit to
KEY1
IO1
b1
b1
9505D–AT42–12/08
KEY0
IO0
b0
b0