Freescale Semiconductor FRDM-FXS-MULTI 데이터 시트
MMA8652FC
Sensors
20
Freescale Semiconductor, Inc.
6
Register Descriptions
6.1
Register address map
Table 12. MMA8652FC register address map
Name
Type
Register
Address
Address
Auto-Increment Address
Default
Hex
Value
Comment
FMODE = 0
F_READ = 0
FMODE > 0
F_READ = 0
FMODE = 0
F_READ = 1
FMODE > 0
F_READ = 1
STATUS/
F_STATUS
F_STATUS
(1)(2)
R
0x00
0x01
00000000
0x00
FMODE = 0, real time status
FMODE > 0, FIFO status
OUT_X_MSB
(1)(2)
R
0x01
0x02
0x01
0x03
0x01
Output
—
[7:0] are 8 MSBs
of 12-bit sample.
Root pointer to
XYZ FIFO data.
OUT_X_LSB
(1)(2)
R
0x02
0x03
0x00
Output
—
[7:4] are 4 LSBs of 12-bit real-time
sample
OUT_Y_MSB
(1)(2)
R
0x03
0x04
0x05
0x00
Output
—
[7:0] are 8 MSBs of 12-bit real-time
sample
OUT_Y_LSB
(1)(2)
R
0x04
0x05
0x00
Output
—
[7:4] are 4 LSBs of 12-bit real-time
sample
OUT_Z_MSB
(1)(2)
R
0x05
0x06
0x00
Output
—
[7:0] are 8 MSBs of 12-bit real-time
sample
OUT_Z_LSB
(1)(2)
R
0x06
0x00
Output
—
[7:4] are 4 LSBs of 12-bit real-time
sample
Reserved
R
0x07
0x08
—
—
—
—
—
—
Reserved. Read return 0x00.
F_SETUP
(1)(3)
R/W
0x09
0x0A
00000000
0x00
FIFO setup
TRIG_CFG
(1)(4)
R/W
0x0A
0x0B
00000000
0x00
Map of FIFO data capture events
SYSMOD
(1)(2)
R
0x0B
0x0C
00000000
0x00
Current System mode
INT_SOURCE
(1)(2)
R
0x0C
0x0D
00000000
0x00
Interrupt status
WHO_AM_I
(1)
R
0x0D
0x0E
01001010
0x4A
Device ID (0x4A)
XYZ_DATA_CFG
(1)(4)
R/W
0x0E
0x0F
00000000
0x00
Dynamic Range Settings
HP_FILTER_CUTOFF
(1
)(4)
R/W
0x0F
0x10
00000000
0x00
High-Pass Filter Selection
PL_STATUS
(1)(2)
R
0x10
0x11
00000000
0x00
Landscape/Portrait orientation
status
PL_CFG
(1)(4)
R/W
0x11
0x12
10000000
0x80
Landscape/Portrait configuration.
PL_COUNT
(1)(3)
R/W
0x12
0x13
00000000
0x00
Landscape/Portrait debounce
counter
PL_BF_ZCOMP
(1)(4)
R/W
0x13
0x14
01000100
0x44
Back/Front, Z-Lock Trip threshold
P_L_THS_REG
(1)(4)
R/W
0x14
0x15
10000100
0x84
Portrait/Landscape Threshold and
Hysteresis
FF_MT_CFG
(1)(4)
R/W
0x15
0x16
00000000
0x00
Freefall/Motion functional block
configuration
FF_MT_SRC
(1)(2)
R
0x16
0x17
00000000
0x00
Freefall/Motion event source
register
FF_MT_THS
(1)(3)
R/W
0x17
0x18
00000000
0x00
Freefall/Motion threshold register
FF_MT_COUNT
(1)(3)
R/W
0x18
0x19
00000000
0x00
Freefall/Motion debounce counter
Reserved
R
0x19
0x1A
0x1B
0x1C
—
—
—
—
—
—
Reserved. Read return 0x00.