Rohm Kionix KX132-1211, Technical Reference Manual

Page: 18 / 73

± 2g / 4g / 8g / 16g Tri-axis Digital
Accelerometer Technical
Reference Manual
PART NUMBER:
KX132-1211
Rev. 1.0
31-Jul-2019
36 Thornwood Dr. – Ithaca, NY 14850 © 2019 Kionix – All Rights Reserved
tel: 607-257-1080 – fax:607-257-1146 893-12874-1907311402-0.17
www.kionix.com - info@kionix.com Page 18 of 73
1.12 CONTROL REGISTERS (0x1B
– 0x20)
The main control functions of the accelerometer can be set via CNTL1
– CNTL6 registers.
CNTL1
Control register 1. Read/write control register that controls the main feature set. Note that to properly change the value
of these registers, the PC1 bit in CNTL1 register must first be set to “0”.
R/W R/W R/W R/W R/W R/W R/W R/W
PC1 RES DRDYE GSEL1 GSEL0 TDTE Reserved TPE Reset Value
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 00000000
Address: 0x1B
PC1
– controls the operating mode.
PC1 = 0
– stand-by mode
PC1 = 1
– High-Performance or Low Power mode
RES
– The RES bit determines the performance mode of the KX132-1211. The noise varies with ODR,
RES and different LP_CNTL1 settings possibly reducing the effective resolution.
RES = 0
– Low Power mode (higher noise, lower current, 16-bit output data)
RES = 1
– High-Performance mode (lower noise, higher current, 16-bit output data)
DRDYE
– Data Ready Engine enable bit.
DRDYE = 0
– Data Ready Engine is disabled
DRDYE = 1
– Data Ready Engine is enabled
GSEL<1:0>
– G-range Select (GSEL) bits select the acceleration range of the accelerometer outputs
per Table 7. This range is also called a full-scale range of the accelerometer.
GSEL1 GSEL0 Range
0 0 ±2g
0 1 ±4g
1 0 ±8g
1 1 ±16g
Table 7: Selected Acceleration Range
TDTE
– Tap/Double-Tap
TM
Engine (TDTE) enable bit.
TDTE = 0
– Tap/Double-Tap
TM
Engine is disabled
TDTE = 1
– Tap/Double-Tap
TM
Engine is enabled
Reserved
– The value of reserved bit should not be changed
TPE
– Tilt Position Engine (TPE) enable bit.
TPE = 0
– Tilt Position Engine is disabled
TPE = 1
– Tilt Position Engine is enabled