M-G362 Datasheet, PDF (36/69 Pages) Epson Company – IMU (Inertial Measurement Unit)

6.2.2 UART Read Timing (Burst Mode)
Burst mode access of read data is supported using a “Burst Read Command” by writing 0x00 in
BURST_CMD (BURST [0x00(W0)] bits[7:0]). In Burst Mode, ND flag/EA flag, temperature sensor value,
3-axis gyroscope sensor value, 3-axis acceleration sensor value, GPIO, etc. are consecutively sent as a
response. The response format for the burst read output data is configured by register setting in
BURST_CTRL1 [0x0C(W1)] and BURST_CTRL2 [0x0E(W1)]. Please refer to 6.3 Data Packet Format
for the response format.
SIN
SOUT
t_STALL
0x80xx CR
Command
AD
t_READRATE
ND/EA TEMP_H
Count Checksum CR
0x80xx CR
Command
Response
Figure 6.6 UART Read Timing (Burst Mode)
Table 6.12 Command Format (Burst Mode)
First byte
Second byte
Third byte
765432107654321076543210
0x80
XX
0x0D
0x80 ･･･ Burst Command
XX ･･･ Don't Care
0x0D ･･･ Delimiter
6.2.3 UART Write Timing
A write command to a register will have no response. Unlike register reading, registers are written in
8-bit words.
t_WRITERATE
SIN
Command CR
SOUT
Figure 6.7 UART Write Timing
Command CR
Table 6.13 Command Format (Write)
First byte
Second byte
Third byte
765432107654321076543210
1
A[6:0]
D[7:0]
0x0D
A[6:0] ･･･ Register address (even number or odd number)
D[7:0] ･･･ Register write data
0x0D ･･･ Delimiter
32
Seiko Epson Corporation
M-G362PDC1 Data Sheet
Rev.20131217