MPR083EJ Freescale, MPR083EJ Datasheet - Page 12

• Manufacturer Part Number: MPR083EJ
• Manufacturer: Freescale

Specifications of MPR083EJ

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Package Type: TSSOP
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Compliant

Table 8. Power-Up Register Configurations
MPR083
12
4
4.1
The operating modes of the MPR083 are described in this section. Implementation and functionality of each mode are described.
The Modes of Operation of the MPR083 combine to form a suite of quick response and low power consumption functionality. This
is achieved through 2 Run modes and 2 Stop Modes. The two modes are enabled by toggling the Configuration Register’s DCE
and RUNE bits as shown in
Register. Thus, when changes to registers are needed, enter Stop1 mode, write to the registers and change the mode to “Run”.
4.2
On power-up, the interrupt output IRQ is reset, and IRQ will go high. The registers are reset to the values shown in
FIFO Register
Fault Register
Rotary Status Register
Rotary Configuration Register
Sensitivity Threshold Register
Master Tick Period Register
Touch Acquisition Sample Period
Register
Sounder Configuration Register
Low Power Configuration Register
Stuck Key Timeout Register
Configuration Register
Sensor Information Register
Modes of Operation
Introduction
Initial Power Up
Register Function
Table
7. Note that while in a run mode, the only register that can be written to is the Configuration
Table 7. Mode Enable Register Bits
FIFO is empty
No faults
Rotary is untouched
Rotary is enabled, without interrupts, with
sounder enabled and Auto-Cal Disabled
Maximum sensitivity
Master clock period is 10ms
TASP is 1 master tick period
Sounder is globally enabled, 10ms of 1kHz
Low Power Mode is disabled
Stuck key detector disabled
Stop1 Mode. IRQ is disabled
Fixed SensorInfo based on revision
Mode
Stop1
Stop2
Run1
Run2
Power-Up Condition
RUNE
1
1
0
0
DCE
1
0
1
0
Register Address
0x0A
0x0B
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
Freescale Semiconductor
HEX Value
0xFF
0x40
0x00
0x00
0x81
0x00
0x05
0x01
0x01
0x00
0x00
0x14
Table
Sensors
8.