M-G362 Datasheet, PDF (25/69 Pages) Epson Company – IMU (Inertial Measurement Unit)

Data output rate: 2kSps
Average Filter TAP: N=2
500us
ADC
1
2
Filtering
Decimation &
Temp. Correction
< 300us
3
4
t_ER2A
EXT Reset Input
Internally saved
Count Value
COUNT Register
reset internal counter
77
89
77
7
18
7
250us
5
6
7
8
9
10
11
t_ERC
t_ERW
30
42
53
65
77
89
7
30
53
77
7
DRDY signal
SPI_I/F
(Host reads data.)
1'
2'
3'
4'
5'
X(1')={X(1)+X(2)}/2
Figure 5.10 External Counter Reset Input
5.11 Checksum
A checksum can be appended to the response data during UART/SPI Burst mode or UART Auto mode
by enabling this function in CHKSM_OUT (BURST_CTRL1 [0x0C(W1)] bit 0).
The checksum range of the data content is calculated immediately after the address byte (0x80) of the
response data up to (not including) the delimiter byte (CR=0x0D). The calculation method of checksum
is a simple addition of the data content in units of 16-bit, and the resulting sum is truncated to 16-bits
and appended as checksum just before delimiter byte (CR=0x0D).
For example:
Because the sum total is "611B4" for the following response data stream, the checksum is "11B4":
"FE01 C455 4000 0052 33C0 0043 7BC8 004A 2608 FD73 3AA0 FF75 4C30 1F53 8FD0 0600 0014"
SIN
SOUT
0x80xx CR
Command
AD ND/EA TEMP_H TEMP_L
Count Checksum CR
Range of checksum
Figure 5.11 Checksum
M-G362PDC1 Data Sheet
Seiko Epson Corporation
21
Rev.20131217