mpr084 Freescale Semiconductor, Inc, mpr084 Datasheet - Page 18

• Manufacturer Part Number: mpr084
• Description: Proximity Capacitive Touch Sensor Controller
• Manufacturer: Freescale Semiconductor, Inc

MPR084
18
5.3.1
The Low Power Configuration register is used to set both the Idle Timeout Period and Sleep Cycle Duration multiplication factors.
The I
2
C slave address of the Low Power Configuration Register is 0x11.
Table 12. Low Power Configuration Register Field Descriptions
Low Power Configuration Register
Reset:
Field
SCD
ITP
7:5
4:0
W
R
0
7
= Unimplemented
Idle Timeout Period – The Idle Timeout Period selects the amount to multiply the
TASP (touch acquisition sample period) by to determine the idle interface timeout
(IIT) period of the sensor controller.
000 Encoding 0 – Disables Low Power Mode
001 Encoding 1 – Sets the ITP multiplication factor to 1
~
111 Encoding 7 – Sets the ITP multiplication factor to 7
Sleep Cycle Duration – The Sleep Cycle Duration Field selects the amount to
multiply the TASP (touch acquisition sample period) by to determine the Sleep
period of the sensor controller.
00000 Encoding 0 – Disables Low Power Mode
00001 Encoding 1 – Sets the SCD multiplication factor to 1
~
11111 Encoding 31 – Sets the SCD multiplication factor to 31
Figure 21. Low Power Configuration Register
ITP
6
0
5
0
4
0
Description
3
0
SCD
2
0
1
0
Freescale Semiconductor
0
0
Sensors