M-G362 Datasheet, PDF (52/69 Pages) Epson Company – IMU (Inertial Measurement Unit)

NOTE: The BRATE pin should be changed only when the IMU is powered off, or requires asserting
a hardware reset or software reset (write a 1 to SOFT_RST of GLOB_CMD [0x0A(W1)] bit 7)
after the BRATE pin change.
NOTE: The baud rate change using these BAUD_RATE bits become effective immediately after
write access completes.
bit[1]
AUTO_START (Only valid for UART Auto Mode)
Enables or disables the Auto Start function.
1 :Automatic Start is enabled
0 :Automatic Start is disabled
When Auto Start is enabled, the device enters sampling mode and sends sampling data
automatically after completing internal initialization when IMU is powered on or reset.
Write a "1" to this AUTO_START bit and UART_AUTO bit of this register to enable this
function.Then execute FLASH_BACKUP of GLOB_CMD [0x0A(W1)] bit 3 to preserve the
current register settings.
bit[0]
UART_AUTO
Enables or disables the UART Auto mode function.
NOTE: This register bit must be set to 0 when using the SPI interface.
1 :UART automatic mode is selected
0 :UART manual mode is selected
If UART automatic mode is active, register values such as FLAG, temperature, angle rate
(XGYRO, YGYRO, ZGYRO), accelerations (XACCL, YACCL, ZACCL), and GPIO are
continuously transmitted automatically according to the data output rate set by SMPL_CTRL
[0x04(W1)] register.
In UART manual mode, register data is transmitted as a response to a register read command.
NOTE: For more info on UART Auto Mode refer to 6.2.4 UART Auto Mode Operation and 6.3
Data Packet Format. The burst output data is configured by register setting in BURST_CTRL1
[0x0C(W1)] and BURST_CTRL2 [0x0E(W1)].
7.15 GLOB_CMD Register (Window 1)
Addr
(Hex)
0x0B
Bit15
-
Bit14
-
Bit13
-
Bit12
-
Bit11
Bit10
Bit9
-
NOT
_READY
-
Bit8
R/W
-
R
Addr
(Hex)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
R/W
0x0A
SOFT
_RST
-
-
-
FLASH
_BACKUP
-
-
-
R/W
bit[10]
NOT_READY
Indicates whether the IMU is currently ready. Immediately after power on, this bit is “1” and
becomes “0” when the IMU is ready. After the power on, wait until the Power-On Start-Up Time
has elapsed and then wait until this bit becomes “0” before starting sensor measurement. This bit
is read-only.
1 : Not ready
0 : Ready
bit[7]
SOFT_RST
Write “1” to execute software reset. After the software reset is completed, the bit automatically
goes back to “0”.
48
Seiko Epson Corporation
M-G362PDC1 Data Sheet
Rev.20131217